diff options
Diffstat (limited to 'widget/gonk/libui/InputReader.cpp')
| -rw-r--r-- | widget/gonk/libui/InputReader.cpp | 6510 |
1 files changed, 0 insertions, 6510 deletions
diff --git a/widget/gonk/libui/InputReader.cpp b/widget/gonk/libui/InputReader.cpp deleted file mode 100644 index 3699569aa..000000000 --- a/widget/gonk/libui/InputReader.cpp +++ /dev/null @@ -1,6510 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#define LOG_TAG "InputReader" - -//#define LOG_NDEBUG 0 -#include "cutils_log.h" - -// Log debug messages for each raw event received from the EventHub. -#define DEBUG_RAW_EVENTS 0 - -// Log debug messages about touch screen filtering hacks. -#define DEBUG_HACKS 0 - -// Log debug messages about virtual key processing. -#define DEBUG_VIRTUAL_KEYS 0 - -// Log debug messages about pointers. -#define DEBUG_POINTERS 0 - -// Log debug messages about pointer assignment calculations. -#define DEBUG_POINTER_ASSIGNMENT 0 - -// Log debug messages about gesture detection. -#define DEBUG_GESTURES 0 - -// Log debug messages about the vibrator. -#define DEBUG_VIBRATOR 0 - -#include "InputReader.h" - -#include "Keyboard.h" -#include "VirtualKeyMap.h" - -#include <stddef.h> -#include <stdlib.h> -#include <unistd.h> -#include <errno.h> -#include <limits.h> -#include <math.h> - -#define INDENT " " -#define INDENT2 " " -#define INDENT3 " " -#define INDENT4 " " -#define INDENT5 " " - -namespace android { - -// --- Constants --- - -// Maximum number of slots supported when using the slot-based Multitouch Protocol B. -static const size_t MAX_SLOTS = 32; - -// --- Static Functions --- - -template<typename T> -inline static T abs(const T& value) { - return value < 0 ? - value : value; -} - -template<typename T> -inline static T min(const T& a, const T& b) { - return a < b ? a : b; -} - -template<typename T> -inline static void swap(T& a, T& b) { - T temp = a; - a = b; - b = temp; -} - -inline static float avg(float x, float y) { - return (x + y) / 2; -} - -inline static float distance(float x1, float y1, float x2, float y2) { - return hypotf(x1 - x2, y1 - y2); -} - -inline static int32_t signExtendNybble(int32_t value) { - return value >= 8 ? value - 16 : value; -} - -static inline const char* toString(bool value) { - return value ? "true" : "false"; -} - -static int32_t rotateValueUsingRotationMap(int32_t value, int32_t orientation, - const int32_t map[][4], size_t mapSize) { - if (orientation != DISPLAY_ORIENTATION_0) { - for (size_t i = 0; i < mapSize; i++) { - if (value == map[i][0]) { - return map[i][orientation]; - } - } - } - return value; -} - -static const int32_t keyCodeRotationMap[][4] = { - // key codes enumerated counter-clockwise with the original (unrotated) key first - // no rotation, 90 degree rotation, 180 degree rotation, 270 degree rotation - { AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT }, - { AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN }, - { AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT }, - { AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP }, -}; -static const size_t keyCodeRotationMapSize = - sizeof(keyCodeRotationMap) / sizeof(keyCodeRotationMap[0]); - -static int32_t rotateKeyCode(int32_t keyCode, int32_t orientation) { - return rotateValueUsingRotationMap(keyCode, orientation, - keyCodeRotationMap, keyCodeRotationMapSize); -} - -static void rotateDelta(int32_t orientation, float* deltaX, float* deltaY) { - float temp; - switch (orientation) { - case DISPLAY_ORIENTATION_90: - temp = *deltaX; - *deltaX = *deltaY; - *deltaY = -temp; - break; - - case DISPLAY_ORIENTATION_180: - *deltaX = -*deltaX; - *deltaY = -*deltaY; - break; - - case DISPLAY_ORIENTATION_270: - temp = *deltaX; - *deltaX = -*deltaY; - *deltaY = temp; - break; - } -} - -static inline bool sourcesMatchMask(uint32_t sources, uint32_t sourceMask) { - return (sources & sourceMask & ~ AINPUT_SOURCE_CLASS_MASK) != 0; -} - -// Returns true if the pointer should be reported as being down given the specified -// button states. This determines whether the event is reported as a touch event. -static bool isPointerDown(int32_t buttonState) { - return buttonState & - (AMOTION_EVENT_BUTTON_PRIMARY | AMOTION_EVENT_BUTTON_SECONDARY - | AMOTION_EVENT_BUTTON_TERTIARY); -} - -static float calculateCommonVector(float a, float b) { - if (a > 0 && b > 0) { - return a < b ? a : b; - } else if (a < 0 && b < 0) { - return a > b ? a : b; - } else { - return 0; - } -} - -static void synthesizeButtonKey(InputReaderContext* context, int32_t action, - nsecs_t when, int32_t deviceId, uint32_t source, - uint32_t policyFlags, int32_t lastButtonState, int32_t currentButtonState, - int32_t buttonState, int32_t keyCode) { - if ( - (action == AKEY_EVENT_ACTION_DOWN - && !(lastButtonState & buttonState) - && (currentButtonState & buttonState)) - || (action == AKEY_EVENT_ACTION_UP - && (lastButtonState & buttonState) - && !(currentButtonState & buttonState))) { - NotifyKeyArgs args(when, deviceId, source, policyFlags, - action, 0, keyCode, 0, context->getGlobalMetaState(), when); - context->getListener()->notifyKey(&args); - } -} - -static void synthesizeButtonKeys(InputReaderContext* context, int32_t action, - nsecs_t when, int32_t deviceId, uint32_t source, - uint32_t policyFlags, int32_t lastButtonState, int32_t currentButtonState) { - synthesizeButtonKey(context, action, when, deviceId, source, policyFlags, - lastButtonState, currentButtonState, - AMOTION_EVENT_BUTTON_BACK, AKEYCODE_BACK); - synthesizeButtonKey(context, action, when, deviceId, source, policyFlags, - lastButtonState, currentButtonState, - AMOTION_EVENT_BUTTON_FORWARD, AKEYCODE_FORWARD); -} - - -// --- InputReaderConfiguration --- - -bool InputReaderConfiguration::getDisplayInfo(bool external, DisplayViewport* outViewport) const { - const DisplayViewport& viewport = external ? mExternalDisplay : mInternalDisplay; - if (viewport.displayId >= 0) { - *outViewport = viewport; - return true; - } - return false; -} - -void InputReaderConfiguration::setDisplayInfo(bool external, const DisplayViewport& viewport) { - DisplayViewport& v = external ? mExternalDisplay : mInternalDisplay; - v = viewport; -} - - -// --- InputReader --- - -InputReader::InputReader(const sp<EventHubInterface>& eventHub, - const sp<InputReaderPolicyInterface>& policy, - const sp<InputListenerInterface>& listener) : - mContext(this), mEventHub(eventHub), mPolicy(policy), - mGlobalMetaState(0), mGeneration(1), - mDisableVirtualKeysTimeout(LLONG_MIN), mNextTimeout(LLONG_MAX), - mConfigurationChangesToRefresh(0) { - mQueuedListener = new QueuedInputListener(listener); - - { // acquire lock - AutoMutex _l(mLock); - - refreshConfigurationLocked(0); - updateGlobalMetaStateLocked(); - } // release lock -} - -InputReader::~InputReader() { - for (size_t i = 0; i < mDevices.size(); i++) { - delete mDevices.valueAt(i); - } -} - -void InputReader::loopOnce() { - int32_t oldGeneration; - int32_t timeoutMillis; - bool inputDevicesChanged = false; - Vector<InputDeviceInfo> inputDevices; - { // acquire lock - AutoMutex _l(mLock); - - oldGeneration = mGeneration; - timeoutMillis = -1; - - uint32_t changes = mConfigurationChangesToRefresh; - if (changes) { - mConfigurationChangesToRefresh = 0; - timeoutMillis = 0; - refreshConfigurationLocked(changes); - } else if (mNextTimeout != LLONG_MAX) { - nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); - timeoutMillis = toMillisecondTimeoutDelay(now, mNextTimeout); - } - } // release lock - - size_t count = mEventHub->getEvents(timeoutMillis, mEventBuffer, EVENT_BUFFER_SIZE); - - { // acquire lock - AutoMutex _l(mLock); - mReaderIsAliveCondition.broadcast(); - - if (count) { - processEventsLocked(mEventBuffer, count); - } - - if (mNextTimeout != LLONG_MAX) { - nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); - if (now >= mNextTimeout) { -#if DEBUG_RAW_EVENTS - ALOGD("Timeout expired, latency=%0.3fms", (now - mNextTimeout) * 0.000001f); -#endif - mNextTimeout = LLONG_MAX; - timeoutExpiredLocked(now); - } - } - - if (oldGeneration != mGeneration) { - inputDevicesChanged = true; - getInputDevicesLocked(inputDevices); - } - } // release lock - - // Send out a message that the describes the changed input devices. - if (inputDevicesChanged) { - mPolicy->notifyInputDevicesChanged(inputDevices); - } - - // Flush queued events out to the listener. - // This must happen outside of the lock because the listener could potentially call - // back into the InputReader's methods, such as getScanCodeState, or become blocked - // on another thread similarly waiting to acquire the InputReader lock thereby - // resulting in a deadlock. This situation is actually quite plausible because the - // listener is actually the input dispatcher, which calls into the window manager, - // which occasionally calls into the input reader. - mQueuedListener->flush(); -} - -void InputReader::processEventsLocked(const RawEvent* rawEvents, size_t count) { - for (const RawEvent* rawEvent = rawEvents; count;) { - int32_t type = rawEvent->type; - size_t batchSize = 1; - if (type < EventHubInterface::FIRST_SYNTHETIC_EVENT) { - int32_t deviceId = rawEvent->deviceId; - while (batchSize < count) { - if (rawEvent[batchSize].type >= EventHubInterface::FIRST_SYNTHETIC_EVENT - || rawEvent[batchSize].deviceId != deviceId) { - break; - } - batchSize += 1; - } -#if DEBUG_RAW_EVENTS - ALOGD("BatchSize: %d Count: %d", batchSize, count); -#endif - processEventsForDeviceLocked(deviceId, rawEvent, batchSize); - } else { - switch (rawEvent->type) { - case EventHubInterface::DEVICE_ADDED: - addDeviceLocked(rawEvent->when, rawEvent->deviceId); - break; - case EventHubInterface::DEVICE_REMOVED: - removeDeviceLocked(rawEvent->when, rawEvent->deviceId); - break; - case EventHubInterface::FINISHED_DEVICE_SCAN: - handleConfigurationChangedLocked(rawEvent->when); - break; - default: - ALOG_ASSERT(false); // can't happen - break; - } - } - count -= batchSize; - rawEvent += batchSize; - } -} - -void InputReader::addDeviceLocked(nsecs_t when, int32_t deviceId) { - ssize_t deviceIndex = mDevices.indexOfKey(deviceId); - if (deviceIndex >= 0) { - ALOGW("Ignoring spurious device added event for deviceId %d.", deviceId); - return; - } - - InputDeviceIdentifier identifier = mEventHub->getDeviceIdentifier(deviceId); - uint32_t classes = mEventHub->getDeviceClasses(deviceId); - - InputDevice* device = createDeviceLocked(deviceId, identifier, classes); - device->configure(when, &mConfig, 0); - device->reset(when); - - if (device->isIgnored()) { - ALOGI("Device added: id=%d, name='%s' (ignored non-input device)", deviceId, - identifier.name.string()); - } else { - ALOGI("Device added: id=%d, name='%s', sources=0x%08x", deviceId, - identifier.name.string(), device->getSources()); - } - - mDevices.add(deviceId, device); - bumpGenerationLocked(); -} - -void InputReader::removeDeviceLocked(nsecs_t when, int32_t deviceId) { - InputDevice* device = NULL; - ssize_t deviceIndex = mDevices.indexOfKey(deviceId); - if (deviceIndex < 0) { - ALOGW("Ignoring spurious device removed event for deviceId %d.", deviceId); - return; - } - - device = mDevices.valueAt(deviceIndex); - mDevices.removeItemsAt(deviceIndex, 1); - bumpGenerationLocked(); - - if (device->isIgnored()) { - ALOGI("Device removed: id=%d, name='%s' (ignored non-input device)", - device->getId(), device->getName().string()); - } else { - ALOGI("Device removed: id=%d, name='%s', sources=0x%08x", - device->getId(), device->getName().string(), device->getSources()); - } - - device->reset(when); - delete device; -} - -InputDevice* InputReader::createDeviceLocked(int32_t deviceId, - const InputDeviceIdentifier& identifier, uint32_t classes) { - InputDevice* device = new InputDevice(&mContext, deviceId, bumpGenerationLocked(), - identifier, classes); - - // External devices. - if (classes & INPUT_DEVICE_CLASS_EXTERNAL) { - device->setExternal(true); - } - - // Switch-like devices. - if (classes & INPUT_DEVICE_CLASS_SWITCH) { - device->addMapper(new SwitchInputMapper(device)); - } - - // Vibrator-like devices. - if (classes & INPUT_DEVICE_CLASS_VIBRATOR) { - device->addMapper(new VibratorInputMapper(device)); - } - - // Keyboard-like devices. - uint32_t keyboardSource = 0; - int32_t keyboardType = AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC; - if (classes & INPUT_DEVICE_CLASS_KEYBOARD) { - keyboardSource |= AINPUT_SOURCE_KEYBOARD; - } - if (classes & INPUT_DEVICE_CLASS_ALPHAKEY) { - keyboardType = AINPUT_KEYBOARD_TYPE_ALPHABETIC; - } - if (classes & INPUT_DEVICE_CLASS_DPAD) { - keyboardSource |= AINPUT_SOURCE_DPAD; - } - if (classes & INPUT_DEVICE_CLASS_GAMEPAD) { - keyboardSource |= AINPUT_SOURCE_GAMEPAD; - } - - if (keyboardSource != 0) { - device->addMapper(new KeyboardInputMapper(device, keyboardSource, keyboardType)); - } - - // Cursor-like devices. - if (classes & INPUT_DEVICE_CLASS_CURSOR) { - device->addMapper(new CursorInputMapper(device)); - } - - // Touchscreens and touchpad devices. - if (classes & INPUT_DEVICE_CLASS_TOUCH_MT) { - device->addMapper(new MultiTouchInputMapper(device)); - } else if (classes & INPUT_DEVICE_CLASS_TOUCH) { - device->addMapper(new SingleTouchInputMapper(device)); - } - - // Joystick-like devices. - if (classes & INPUT_DEVICE_CLASS_JOYSTICK) { - device->addMapper(new JoystickInputMapper(device)); - } - - return device; -} - -void InputReader::processEventsForDeviceLocked(int32_t deviceId, - const RawEvent* rawEvents, size_t count) { - ssize_t deviceIndex = mDevices.indexOfKey(deviceId); - if (deviceIndex < 0) { - ALOGW("Discarding event for unknown deviceId %d.", deviceId); - return; - } - - InputDevice* device = mDevices.valueAt(deviceIndex); - if (device->isIgnored()) { - //ALOGD("Discarding event for ignored deviceId %d.", deviceId); - return; - } - - device->process(rawEvents, count); -} - -void InputReader::timeoutExpiredLocked(nsecs_t when) { - for (size_t i = 0; i < mDevices.size(); i++) { - InputDevice* device = mDevices.valueAt(i); - if (!device->isIgnored()) { - device->timeoutExpired(when); - } - } -} - -void InputReader::handleConfigurationChangedLocked(nsecs_t when) { - // Reset global meta state because it depends on the list of all configured devices. - updateGlobalMetaStateLocked(); - - // Enqueue configuration changed. - NotifyConfigurationChangedArgs args(when); - mQueuedListener->notifyConfigurationChanged(&args); -} - -void InputReader::refreshConfigurationLocked(uint32_t changes) { - mPolicy->getReaderConfiguration(&mConfig); - mEventHub->setExcludedDevices(mConfig.excludedDeviceNames); - - if (changes) { - ALOGI("Reconfiguring input devices. changes=0x%08x", changes); - nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); - - if (changes & InputReaderConfiguration::CHANGE_MUST_REOPEN) { - mEventHub->requestReopenDevices(); - } else { - for (size_t i = 0; i < mDevices.size(); i++) { - InputDevice* device = mDevices.valueAt(i); - device->configure(now, &mConfig, changes); - } - } - } -} - -void InputReader::updateGlobalMetaStateLocked() { - mGlobalMetaState = 0; - - for (size_t i = 0; i < mDevices.size(); i++) { - InputDevice* device = mDevices.valueAt(i); - mGlobalMetaState |= device->getMetaState(); - } -} - -int32_t InputReader::getGlobalMetaStateLocked() { - return mGlobalMetaState; -} - -void InputReader::disableVirtualKeysUntilLocked(nsecs_t time) { - mDisableVirtualKeysTimeout = time; -} - -bool InputReader::shouldDropVirtualKeyLocked(nsecs_t now, - InputDevice* device, int32_t keyCode, int32_t scanCode) { - if (now < mDisableVirtualKeysTimeout) { - ALOGI("Dropping virtual key from device %s because virtual keys are " - "temporarily disabled for the next %0.3fms. keyCode=%d, scanCode=%d", - device->getName().string(), - (mDisableVirtualKeysTimeout - now) * 0.000001, - keyCode, scanCode); - return true; - } else { - return false; - } -} - -void InputReader::fadePointerLocked() { - for (size_t i = 0; i < mDevices.size(); i++) { - InputDevice* device = mDevices.valueAt(i); - device->fadePointer(); - } -} - -void InputReader::requestTimeoutAtTimeLocked(nsecs_t when) { - if (when < mNextTimeout) { - mNextTimeout = when; - mEventHub->wake(); - } -} - -int32_t InputReader::bumpGenerationLocked() { - return ++mGeneration; -} - -void InputReader::getInputDevices(Vector<InputDeviceInfo>& outInputDevices) { - AutoMutex _l(mLock); - getInputDevicesLocked(outInputDevices); -} - -void InputReader::getInputDevicesLocked(Vector<InputDeviceInfo>& outInputDevices) { - outInputDevices.clear(); - - size_t numDevices = mDevices.size(); - for (size_t i = 0; i < numDevices; i++) { - InputDevice* device = mDevices.valueAt(i); - if (!device->isIgnored()) { - outInputDevices.push(); - device->getDeviceInfo(&outInputDevices.editTop()); - } - } -} - -int32_t InputReader::getKeyCodeState(int32_t deviceId, uint32_t sourceMask, - int32_t keyCode) { - AutoMutex _l(mLock); - - return getStateLocked(deviceId, sourceMask, keyCode, &InputDevice::getKeyCodeState); -} - -int32_t InputReader::getScanCodeState(int32_t deviceId, uint32_t sourceMask, - int32_t scanCode) { - AutoMutex _l(mLock); - - return getStateLocked(deviceId, sourceMask, scanCode, &InputDevice::getScanCodeState); -} - -int32_t InputReader::getSwitchState(int32_t deviceId, uint32_t sourceMask, int32_t switchCode) { - AutoMutex _l(mLock); - - return getStateLocked(deviceId, sourceMask, switchCode, &InputDevice::getSwitchState); -} - -int32_t InputReader::getStateLocked(int32_t deviceId, uint32_t sourceMask, int32_t code, - GetStateFunc getStateFunc) { - int32_t result = AKEY_STATE_UNKNOWN; - if (deviceId >= 0) { - ssize_t deviceIndex = mDevices.indexOfKey(deviceId); - if (deviceIndex >= 0) { - InputDevice* device = mDevices.valueAt(deviceIndex); - if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) { - result = (device->*getStateFunc)(sourceMask, code); - } - } - } else { - size_t numDevices = mDevices.size(); - for (size_t i = 0; i < numDevices; i++) { - InputDevice* device = mDevices.valueAt(i); - if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) { - // If any device reports AKEY_STATE_DOWN or AKEY_STATE_VIRTUAL, return that - // value. Otherwise, return AKEY_STATE_UP as long as one device reports it. - int32_t currentResult = (device->*getStateFunc)(sourceMask, code); - if (currentResult >= AKEY_STATE_DOWN) { - return currentResult; - } else if (currentResult == AKEY_STATE_UP) { - result = currentResult; - } - } - } - } - return result; -} - -bool InputReader::hasKeys(int32_t deviceId, uint32_t sourceMask, - size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) { - AutoMutex _l(mLock); - - memset(outFlags, 0, numCodes); - return markSupportedKeyCodesLocked(deviceId, sourceMask, numCodes, keyCodes, outFlags); -} - -bool InputReader::markSupportedKeyCodesLocked(int32_t deviceId, uint32_t sourceMask, - size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) { - bool result = false; - if (deviceId >= 0) { - ssize_t deviceIndex = mDevices.indexOfKey(deviceId); - if (deviceIndex >= 0) { - InputDevice* device = mDevices.valueAt(deviceIndex); - if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) { - result = device->markSupportedKeyCodes(sourceMask, - numCodes, keyCodes, outFlags); - } - } - } else { - size_t numDevices = mDevices.size(); - for (size_t i = 0; i < numDevices; i++) { - InputDevice* device = mDevices.valueAt(i); - if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) { - result |= device->markSupportedKeyCodes(sourceMask, - numCodes, keyCodes, outFlags); - } - } - } - return result; -} - -void InputReader::requestRefreshConfiguration(uint32_t changes) { - AutoMutex _l(mLock); - - if (changes) { - bool needWake = !mConfigurationChangesToRefresh; - mConfigurationChangesToRefresh |= changes; - - if (needWake) { - mEventHub->wake(); - } - } -} - -void InputReader::vibrate(int32_t deviceId, const nsecs_t* pattern, size_t patternSize, - ssize_t repeat, int32_t token) { - AutoMutex _l(mLock); - - ssize_t deviceIndex = mDevices.indexOfKey(deviceId); - if (deviceIndex >= 0) { - InputDevice* device = mDevices.valueAt(deviceIndex); - device->vibrate(pattern, patternSize, repeat, token); - } -} - -void InputReader::cancelVibrate(int32_t deviceId, int32_t token) { - AutoMutex _l(mLock); - - ssize_t deviceIndex = mDevices.indexOfKey(deviceId); - if (deviceIndex >= 0) { - InputDevice* device = mDevices.valueAt(deviceIndex); - device->cancelVibrate(token); - } -} - -void InputReader::dump(String8& dump) { - AutoMutex _l(mLock); - - mEventHub->dump(dump); - dump.append("\n"); - - dump.append("Input Reader State:\n"); - - for (size_t i = 0; i < mDevices.size(); i++) { - mDevices.valueAt(i)->dump(dump); - } - - dump.append(INDENT "Configuration:\n"); - dump.append(INDENT2 "ExcludedDeviceNames: ["); - for (size_t i = 0; i < mConfig.excludedDeviceNames.size(); i++) { - if (i != 0) { - dump.append(", "); - } - dump.append(mConfig.excludedDeviceNames.itemAt(i).string()); - } - dump.append("]\n"); - dump.appendFormat(INDENT2 "VirtualKeyQuietTime: %0.1fms\n", - mConfig.virtualKeyQuietTime * 0.000001f); - - dump.appendFormat(INDENT2 "PointerVelocityControlParameters: " - "scale=%0.3f, lowThreshold=%0.3f, highThreshold=%0.3f, acceleration=%0.3f\n", - mConfig.pointerVelocityControlParameters.scale, - mConfig.pointerVelocityControlParameters.lowThreshold, - mConfig.pointerVelocityControlParameters.highThreshold, - mConfig.pointerVelocityControlParameters.acceleration); - - dump.appendFormat(INDENT2 "WheelVelocityControlParameters: " - "scale=%0.3f, lowThreshold=%0.3f, highThreshold=%0.3f, acceleration=%0.3f\n", - mConfig.wheelVelocityControlParameters.scale, - mConfig.wheelVelocityControlParameters.lowThreshold, - mConfig.wheelVelocityControlParameters.highThreshold, - mConfig.wheelVelocityControlParameters.acceleration); - - dump.appendFormat(INDENT2 "PointerGesture:\n"); - dump.appendFormat(INDENT3 "Enabled: %s\n", - toString(mConfig.pointerGesturesEnabled)); - dump.appendFormat(INDENT3 "QuietInterval: %0.1fms\n", - mConfig.pointerGestureQuietInterval * 0.000001f); - dump.appendFormat(INDENT3 "DragMinSwitchSpeed: %0.1fpx/s\n", - mConfig.pointerGestureDragMinSwitchSpeed); - dump.appendFormat(INDENT3 "TapInterval: %0.1fms\n", - mConfig.pointerGestureTapInterval * 0.000001f); - dump.appendFormat(INDENT3 "TapDragInterval: %0.1fms\n", - mConfig.pointerGestureTapDragInterval * 0.000001f); - dump.appendFormat(INDENT3 "TapSlop: %0.1fpx\n", - mConfig.pointerGestureTapSlop); - dump.appendFormat(INDENT3 "MultitouchSettleInterval: %0.1fms\n", - mConfig.pointerGestureMultitouchSettleInterval * 0.000001f); - dump.appendFormat(INDENT3 "MultitouchMinDistance: %0.1fpx\n", - mConfig.pointerGestureMultitouchMinDistance); - dump.appendFormat(INDENT3 "SwipeTransitionAngleCosine: %0.1f\n", - mConfig.pointerGestureSwipeTransitionAngleCosine); - dump.appendFormat(INDENT3 "SwipeMaxWidthRatio: %0.1f\n", - mConfig.pointerGestureSwipeMaxWidthRatio); - dump.appendFormat(INDENT3 "MovementSpeedRatio: %0.1f\n", - mConfig.pointerGestureMovementSpeedRatio); - dump.appendFormat(INDENT3 "ZoomSpeedRatio: %0.1f\n", - mConfig.pointerGestureZoomSpeedRatio); -} - -void InputReader::monitor() { - // Acquire and release the lock to ensure that the reader has not deadlocked. - mLock.lock(); - mEventHub->wake(); - mReaderIsAliveCondition.wait(mLock); - mLock.unlock(); - - // Check the EventHub - mEventHub->monitor(); -} - - -// --- InputReader::ContextImpl --- - -InputReader::ContextImpl::ContextImpl(InputReader* reader) : - mReader(reader) { -} - -void InputReader::ContextImpl::updateGlobalMetaState() { - // lock is already held by the input loop - mReader->updateGlobalMetaStateLocked(); -} - -int32_t InputReader::ContextImpl::getGlobalMetaState() { - // lock is already held by the input loop - return mReader->getGlobalMetaStateLocked(); -} - -void InputReader::ContextImpl::disableVirtualKeysUntil(nsecs_t time) { - // lock is already held by the input loop - mReader->disableVirtualKeysUntilLocked(time); -} - -bool InputReader::ContextImpl::shouldDropVirtualKey(nsecs_t now, - InputDevice* device, int32_t keyCode, int32_t scanCode) { - // lock is already held by the input loop - return mReader->shouldDropVirtualKeyLocked(now, device, keyCode, scanCode); -} - -void InputReader::ContextImpl::fadePointer() { - // lock is already held by the input loop - mReader->fadePointerLocked(); -} - -void InputReader::ContextImpl::requestTimeoutAtTime(nsecs_t when) { - // lock is already held by the input loop - mReader->requestTimeoutAtTimeLocked(when); -} - -int32_t InputReader::ContextImpl::bumpGeneration() { - // lock is already held by the input loop - return mReader->bumpGenerationLocked(); -} - -InputReaderPolicyInterface* InputReader::ContextImpl::getPolicy() { - return mReader->mPolicy.get(); -} - -InputListenerInterface* InputReader::ContextImpl::getListener() { - return mReader->mQueuedListener.get(); -} - -EventHubInterface* InputReader::ContextImpl::getEventHub() { - return mReader->mEventHub.get(); -} - - -// --- InputReaderThread --- - -InputReaderThread::InputReaderThread(const sp<InputReaderInterface>& reader) : - Thread(/*canCallJava*/ true), mReader(reader) { -} - -InputReaderThread::~InputReaderThread() { -} - -bool InputReaderThread::threadLoop() { - mReader->loopOnce(); - return true; -} - - -// --- InputDevice --- - -InputDevice::InputDevice(InputReaderContext* context, int32_t id, int32_t generation, - const InputDeviceIdentifier& identifier, uint32_t classes) : - mContext(context), mId(id), mGeneration(generation), - mIdentifier(identifier), mClasses(classes), - mSources(0), mIsExternal(false), mDropUntilNextSync(false) { -} - -InputDevice::~InputDevice() { - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - delete mMappers[i]; - } - mMappers.clear(); -} - -void InputDevice::dump(String8& dump) { - InputDeviceInfo deviceInfo; - getDeviceInfo(& deviceInfo); - - dump.appendFormat(INDENT "Device %d: %s\n", deviceInfo.getId(), - deviceInfo.getDisplayName().string()); - dump.appendFormat(INDENT2 "Generation: %d\n", mGeneration); - dump.appendFormat(INDENT2 "IsExternal: %s\n", toString(mIsExternal)); - dump.appendFormat(INDENT2 "Sources: 0x%08x\n", deviceInfo.getSources()); - dump.appendFormat(INDENT2 "KeyboardType: %d\n", deviceInfo.getKeyboardType()); - - const Vector<InputDeviceInfo::MotionRange>& ranges = deviceInfo.getMotionRanges(); - if (!ranges.isEmpty()) { - dump.append(INDENT2 "Motion Ranges:\n"); - for (size_t i = 0; i < ranges.size(); i++) { - const InputDeviceInfo::MotionRange& range = ranges.itemAt(i); - const char* label = getAxisLabel(range.axis); - char name[32]; - if (label) { - strncpy(name, label, sizeof(name)); - name[sizeof(name) - 1] = '\0'; - } else { - snprintf(name, sizeof(name), "%d", range.axis); - } - dump.appendFormat(INDENT3 "%s: source=0x%08x, " - "min=%0.3f, max=%0.3f, flat=%0.3f, fuzz=%0.3f, resolution=%0.3f\n", - name, range.source, range.min, range.max, range.flat, range.fuzz, - range.resolution); - } - } - - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->dump(dump); - } -} - -void InputDevice::addMapper(InputMapper* mapper) { - mMappers.add(mapper); -} - -void InputDevice::configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes) { - mSources = 0; - - if (!isIgnored()) { - if (!changes) { // first time only - mContext->getEventHub()->getConfiguration(mId, &mConfiguration); - } - - if (!changes || (changes & InputReaderConfiguration::CHANGE_KEYBOARD_LAYOUTS)) { - if (!(mClasses & INPUT_DEVICE_CLASS_VIRTUAL)) { - sp<KeyCharacterMap> keyboardLayout = - mContext->getPolicy()->getKeyboardLayoutOverlay(mIdentifier.descriptor); - if (mContext->getEventHub()->setKeyboardLayoutOverlay(mId, keyboardLayout)) { - bumpGeneration(); - } - } - } - - if (!changes || (changes & InputReaderConfiguration::CHANGE_DEVICE_ALIAS)) { - if (!(mClasses & INPUT_DEVICE_CLASS_VIRTUAL)) { - String8 alias = mContext->getPolicy()->getDeviceAlias(mIdentifier); - if (mAlias != alias) { - mAlias = alias; - bumpGeneration(); - } - } - } - - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->configure(when, config, changes); - mSources |= mapper->getSources(); - } - } -} - -void InputDevice::reset(nsecs_t when) { - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->reset(when); - } - - mContext->updateGlobalMetaState(); - - notifyReset(when); -} - -void InputDevice::process(const RawEvent* rawEvents, size_t count) { - // Process all of the events in order for each mapper. - // We cannot simply ask each mapper to process them in bulk because mappers may - // have side-effects that must be interleaved. For example, joystick movement events and - // gamepad button presses are handled by different mappers but they should be dispatched - // in the order received. - size_t numMappers = mMappers.size(); - for (const RawEvent* rawEvent = rawEvents; count--; rawEvent++) { -#if DEBUG_RAW_EVENTS - ALOGD("Input event: device=%d type=0x%04x code=0x%04x value=0x%08x when=%lld", - rawEvent->deviceId, rawEvent->type, rawEvent->code, rawEvent->value, - rawEvent->when); -#endif - - if (mDropUntilNextSync) { - if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) { - mDropUntilNextSync = false; -#if DEBUG_RAW_EVENTS - ALOGD("Recovered from input event buffer overrun."); -#endif - } else { -#if DEBUG_RAW_EVENTS - ALOGD("Dropped input event while waiting for next input sync."); -#endif - } - } else if (rawEvent->type == EV_SYN && rawEvent->code == SYN_DROPPED) { - ALOGI("Detected input event buffer overrun for device %s.", getName().string()); - mDropUntilNextSync = true; - reset(rawEvent->when); - } else { - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->process(rawEvent); - } - } - } -} - -void InputDevice::timeoutExpired(nsecs_t when) { - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->timeoutExpired(when); - } -} - -void InputDevice::getDeviceInfo(InputDeviceInfo* outDeviceInfo) { - outDeviceInfo->initialize(mId, mGeneration, mIdentifier, mAlias, mIsExternal); - - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->populateDeviceInfo(outDeviceInfo); - } -} - -int32_t InputDevice::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) { - return getState(sourceMask, keyCode, & InputMapper::getKeyCodeState); -} - -int32_t InputDevice::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { - return getState(sourceMask, scanCode, & InputMapper::getScanCodeState); -} - -int32_t InputDevice::getSwitchState(uint32_t sourceMask, int32_t switchCode) { - return getState(sourceMask, switchCode, & InputMapper::getSwitchState); -} - -int32_t InputDevice::getState(uint32_t sourceMask, int32_t code, GetStateFunc getStateFunc) { - int32_t result = AKEY_STATE_UNKNOWN; - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - if (sourcesMatchMask(mapper->getSources(), sourceMask)) { - // If any mapper reports AKEY_STATE_DOWN or AKEY_STATE_VIRTUAL, return that - // value. Otherwise, return AKEY_STATE_UP as long as one mapper reports it. - int32_t currentResult = (mapper->*getStateFunc)(sourceMask, code); - if (currentResult >= AKEY_STATE_DOWN) { - return currentResult; - } else if (currentResult == AKEY_STATE_UP) { - result = currentResult; - } - } - } - return result; -} - -bool InputDevice::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, - const int32_t* keyCodes, uint8_t* outFlags) { - bool result = false; - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - if (sourcesMatchMask(mapper->getSources(), sourceMask)) { - result |= mapper->markSupportedKeyCodes(sourceMask, numCodes, keyCodes, outFlags); - } - } - return result; -} - -void InputDevice::vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, - int32_t token) { - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->vibrate(pattern, patternSize, repeat, token); - } -} - -void InputDevice::cancelVibrate(int32_t token) { - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->cancelVibrate(token); - } -} - -int32_t InputDevice::getMetaState() { - int32_t result = 0; - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - result |= mapper->getMetaState(); - } - return result; -} - -void InputDevice::fadePointer() { - size_t numMappers = mMappers.size(); - for (size_t i = 0; i < numMappers; i++) { - InputMapper* mapper = mMappers[i]; - mapper->fadePointer(); - } -} - -void InputDevice::bumpGeneration() { - mGeneration = mContext->bumpGeneration(); -} - -void InputDevice::notifyReset(nsecs_t when) { - NotifyDeviceResetArgs args(when, mId); - mContext->getListener()->notifyDeviceReset(&args); -} - - -// --- CursorButtonAccumulator --- - -CursorButtonAccumulator::CursorButtonAccumulator() { - clearButtons(); -} - -void CursorButtonAccumulator::reset(InputDevice* device) { - mBtnLeft = device->isKeyPressed(BTN_LEFT); - mBtnRight = device->isKeyPressed(BTN_RIGHT); - mBtnMiddle = device->isKeyPressed(BTN_MIDDLE); - mBtnBack = device->isKeyPressed(BTN_BACK); - mBtnSide = device->isKeyPressed(BTN_SIDE); - mBtnForward = device->isKeyPressed(BTN_FORWARD); - mBtnExtra = device->isKeyPressed(BTN_EXTRA); - mBtnTask = device->isKeyPressed(BTN_TASK); -} - -void CursorButtonAccumulator::clearButtons() { - mBtnLeft = 0; - mBtnRight = 0; - mBtnMiddle = 0; - mBtnBack = 0; - mBtnSide = 0; - mBtnForward = 0; - mBtnExtra = 0; - mBtnTask = 0; -} - -void CursorButtonAccumulator::process(const RawEvent* rawEvent) { - if (rawEvent->type == EV_KEY) { - switch (rawEvent->code) { - case BTN_LEFT: - mBtnLeft = rawEvent->value; - break; - case BTN_RIGHT: - mBtnRight = rawEvent->value; - break; - case BTN_MIDDLE: - mBtnMiddle = rawEvent->value; - break; - case BTN_BACK: - mBtnBack = rawEvent->value; - break; - case BTN_SIDE: - mBtnSide = rawEvent->value; - break; - case BTN_FORWARD: - mBtnForward = rawEvent->value; - break; - case BTN_EXTRA: - mBtnExtra = rawEvent->value; - break; - case BTN_TASK: - mBtnTask = rawEvent->value; - break; - } - } -} - -uint32_t CursorButtonAccumulator::getButtonState() const { - uint32_t result = 0; - if (mBtnLeft) { - result |= AMOTION_EVENT_BUTTON_PRIMARY; - } - if (mBtnRight) { - result |= AMOTION_EVENT_BUTTON_SECONDARY; - } - if (mBtnMiddle) { - result |= AMOTION_EVENT_BUTTON_TERTIARY; - } - if (mBtnBack || mBtnSide) { - result |= AMOTION_EVENT_BUTTON_BACK; - } - if (mBtnForward || mBtnExtra) { - result |= AMOTION_EVENT_BUTTON_FORWARD; - } - return result; -} - - -// --- CursorMotionAccumulator --- - -CursorMotionAccumulator::CursorMotionAccumulator() { - clearRelativeAxes(); -} - -void CursorMotionAccumulator::reset(InputDevice* device) { - clearRelativeAxes(); -} - -void CursorMotionAccumulator::clearRelativeAxes() { - mRelX = 0; - mRelY = 0; -} - -void CursorMotionAccumulator::process(const RawEvent* rawEvent) { - if (rawEvent->type == EV_REL) { - switch (rawEvent->code) { - case REL_X: - mRelX = rawEvent->value; - break; - case REL_Y: - mRelY = rawEvent->value; - break; - } - } -} - -void CursorMotionAccumulator::finishSync() { - clearRelativeAxes(); -} - - -// --- CursorScrollAccumulator --- - -CursorScrollAccumulator::CursorScrollAccumulator() : - mHaveRelWheel(false), mHaveRelHWheel(false) { - clearRelativeAxes(); -} - -void CursorScrollAccumulator::configure(InputDevice* device) { - mHaveRelWheel = device->getEventHub()->hasRelativeAxis(device->getId(), REL_WHEEL); - mHaveRelHWheel = device->getEventHub()->hasRelativeAxis(device->getId(), REL_HWHEEL); -} - -void CursorScrollAccumulator::reset(InputDevice* device) { - clearRelativeAxes(); -} - -void CursorScrollAccumulator::clearRelativeAxes() { - mRelWheel = 0; - mRelHWheel = 0; -} - -void CursorScrollAccumulator::process(const RawEvent* rawEvent) { - if (rawEvent->type == EV_REL) { - switch (rawEvent->code) { - case REL_WHEEL: - mRelWheel = rawEvent->value; - break; - case REL_HWHEEL: - mRelHWheel = rawEvent->value; - break; - } - } -} - -void CursorScrollAccumulator::finishSync() { - clearRelativeAxes(); -} - - -// --- TouchButtonAccumulator --- - -TouchButtonAccumulator::TouchButtonAccumulator() : - mHaveBtnTouch(false), mHaveStylus(false) { - clearButtons(); -} - -void TouchButtonAccumulator::configure(InputDevice* device) { - mHaveBtnTouch = device->hasKey(BTN_TOUCH); - mHaveStylus = device->hasKey(BTN_TOOL_PEN) - || device->hasKey(BTN_TOOL_RUBBER) - || device->hasKey(BTN_TOOL_BRUSH) - || device->hasKey(BTN_TOOL_PENCIL) - || device->hasKey(BTN_TOOL_AIRBRUSH); -} - -void TouchButtonAccumulator::reset(InputDevice* device) { - mBtnTouch = device->isKeyPressed(BTN_TOUCH); - mBtnStylus = device->isKeyPressed(BTN_STYLUS); - mBtnStylus2 = device->isKeyPressed(BTN_STYLUS); - mBtnToolFinger = device->isKeyPressed(BTN_TOOL_FINGER); - mBtnToolPen = device->isKeyPressed(BTN_TOOL_PEN); - mBtnToolRubber = device->isKeyPressed(BTN_TOOL_RUBBER); - mBtnToolBrush = device->isKeyPressed(BTN_TOOL_BRUSH); - mBtnToolPencil = device->isKeyPressed(BTN_TOOL_PENCIL); - mBtnToolAirbrush = device->isKeyPressed(BTN_TOOL_AIRBRUSH); - mBtnToolMouse = device->isKeyPressed(BTN_TOOL_MOUSE); - mBtnToolLens = device->isKeyPressed(BTN_TOOL_LENS); - mBtnToolDoubleTap = device->isKeyPressed(BTN_TOOL_DOUBLETAP); - mBtnToolTripleTap = device->isKeyPressed(BTN_TOOL_TRIPLETAP); - mBtnToolQuadTap = device->isKeyPressed(BTN_TOOL_QUADTAP); -} - -void TouchButtonAccumulator::clearButtons() { - mBtnTouch = 0; - mBtnStylus = 0; - mBtnStylus2 = 0; - mBtnToolFinger = 0; - mBtnToolPen = 0; - mBtnToolRubber = 0; - mBtnToolBrush = 0; - mBtnToolPencil = 0; - mBtnToolAirbrush = 0; - mBtnToolMouse = 0; - mBtnToolLens = 0; - mBtnToolDoubleTap = 0; - mBtnToolTripleTap = 0; - mBtnToolQuadTap = 0; -} - -void TouchButtonAccumulator::process(const RawEvent* rawEvent) { - if (rawEvent->type == EV_KEY) { - switch (rawEvent->code) { - case BTN_TOUCH: - mBtnTouch = rawEvent->value; - break; - case BTN_STYLUS: - mBtnStylus = rawEvent->value; - break; - case BTN_STYLUS2: - mBtnStylus2 = rawEvent->value; - break; - case BTN_TOOL_FINGER: - mBtnToolFinger = rawEvent->value; - break; - case BTN_TOOL_PEN: - mBtnToolPen = rawEvent->value; - break; - case BTN_TOOL_RUBBER: - mBtnToolRubber = rawEvent->value; - break; - case BTN_TOOL_BRUSH: - mBtnToolBrush = rawEvent->value; - break; - case BTN_TOOL_PENCIL: - mBtnToolPencil = rawEvent->value; - break; - case BTN_TOOL_AIRBRUSH: - mBtnToolAirbrush = rawEvent->value; - break; - case BTN_TOOL_MOUSE: - mBtnToolMouse = rawEvent->value; - break; - case BTN_TOOL_LENS: - mBtnToolLens = rawEvent->value; - break; - case BTN_TOOL_DOUBLETAP: - mBtnToolDoubleTap = rawEvent->value; - break; - case BTN_TOOL_TRIPLETAP: - mBtnToolTripleTap = rawEvent->value; - break; - case BTN_TOOL_QUADTAP: - mBtnToolQuadTap = rawEvent->value; - break; - } - } -} - -uint32_t TouchButtonAccumulator::getButtonState() const { - uint32_t result = 0; - if (mBtnStylus) { - result |= AMOTION_EVENT_BUTTON_SECONDARY; - } - if (mBtnStylus2) { - result |= AMOTION_EVENT_BUTTON_TERTIARY; - } - return result; -} - -int32_t TouchButtonAccumulator::getToolType() const { - if (mBtnToolMouse || mBtnToolLens) { - return AMOTION_EVENT_TOOL_TYPE_MOUSE; - } - if (mBtnToolRubber) { - return AMOTION_EVENT_TOOL_TYPE_ERASER; - } - if (mBtnToolPen || mBtnToolBrush || mBtnToolPencil || mBtnToolAirbrush) { - return AMOTION_EVENT_TOOL_TYPE_STYLUS; - } - if (mBtnToolFinger || mBtnToolDoubleTap || mBtnToolTripleTap || mBtnToolQuadTap) { - return AMOTION_EVENT_TOOL_TYPE_FINGER; - } - return AMOTION_EVENT_TOOL_TYPE_UNKNOWN; -} - -bool TouchButtonAccumulator::isToolActive() const { - return mBtnTouch || mBtnToolFinger || mBtnToolPen || mBtnToolRubber - || mBtnToolBrush || mBtnToolPencil || mBtnToolAirbrush - || mBtnToolMouse || mBtnToolLens - || mBtnToolDoubleTap || mBtnToolTripleTap || mBtnToolQuadTap; -} - -bool TouchButtonAccumulator::isHovering() const { - return mHaveBtnTouch && !mBtnTouch; -} - -bool TouchButtonAccumulator::hasStylus() const { - return mHaveStylus; -} - - -// --- RawPointerAxes --- - -RawPointerAxes::RawPointerAxes() { - clear(); -} - -void RawPointerAxes::clear() { - x.clear(); - y.clear(); - pressure.clear(); - touchMajor.clear(); - touchMinor.clear(); - toolMajor.clear(); - toolMinor.clear(); - orientation.clear(); - distance.clear(); - tiltX.clear(); - tiltY.clear(); - trackingId.clear(); - slot.clear(); -} - - -// --- RawPointerData --- - -RawPointerData::RawPointerData() { - clear(); -} - -void RawPointerData::clear() { - pointerCount = 0; - clearIdBits(); -} - -void RawPointerData::copyFrom(const RawPointerData& other) { - pointerCount = other.pointerCount; - hoveringIdBits = other.hoveringIdBits; - touchingIdBits = other.touchingIdBits; - - for (uint32_t i = 0; i < pointerCount; i++) { - pointers[i] = other.pointers[i]; - - int id = pointers[i].id; - idToIndex[id] = other.idToIndex[id]; - } -} - -void RawPointerData::getCentroidOfTouchingPointers(float* outX, float* outY) const { - float x = 0, y = 0; - uint32_t count = touchingIdBits.count(); - if (count) { - for (BitSet32 idBits(touchingIdBits); !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - const Pointer& pointer = pointerForId(id); - x += pointer.x; - y += pointer.y; - } - x /= count; - y /= count; - } - *outX = x; - *outY = y; -} - - -// --- CookedPointerData --- - -CookedPointerData::CookedPointerData() { - clear(); -} - -void CookedPointerData::clear() { - pointerCount = 0; - hoveringIdBits.clear(); - touchingIdBits.clear(); -} - -void CookedPointerData::copyFrom(const CookedPointerData& other) { - pointerCount = other.pointerCount; - hoveringIdBits = other.hoveringIdBits; - touchingIdBits = other.touchingIdBits; - - for (uint32_t i = 0; i < pointerCount; i++) { - pointerProperties[i].copyFrom(other.pointerProperties[i]); - pointerCoords[i].copyFrom(other.pointerCoords[i]); - - int id = pointerProperties[i].id; - idToIndex[id] = other.idToIndex[id]; - } -} - - -// --- SingleTouchMotionAccumulator --- - -SingleTouchMotionAccumulator::SingleTouchMotionAccumulator() { - clearAbsoluteAxes(); -} - -void SingleTouchMotionAccumulator::reset(InputDevice* device) { - mAbsX = device->getAbsoluteAxisValue(ABS_X); - mAbsY = device->getAbsoluteAxisValue(ABS_Y); - mAbsPressure = device->getAbsoluteAxisValue(ABS_PRESSURE); - mAbsToolWidth = device->getAbsoluteAxisValue(ABS_TOOL_WIDTH); - mAbsDistance = device->getAbsoluteAxisValue(ABS_DISTANCE); - mAbsTiltX = device->getAbsoluteAxisValue(ABS_TILT_X); - mAbsTiltY = device->getAbsoluteAxisValue(ABS_TILT_Y); -} - -void SingleTouchMotionAccumulator::clearAbsoluteAxes() { - mAbsX = 0; - mAbsY = 0; - mAbsPressure = 0; - mAbsToolWidth = 0; - mAbsDistance = 0; - mAbsTiltX = 0; - mAbsTiltY = 0; -} - -void SingleTouchMotionAccumulator::process(const RawEvent* rawEvent) { - if (rawEvent->type == EV_ABS) { - switch (rawEvent->code) { - case ABS_X: - mAbsX = rawEvent->value; - break; - case ABS_Y: - mAbsY = rawEvent->value; - break; - case ABS_PRESSURE: - mAbsPressure = rawEvent->value; - break; - case ABS_TOOL_WIDTH: - mAbsToolWidth = rawEvent->value; - break; - case ABS_DISTANCE: - mAbsDistance = rawEvent->value; - break; - case ABS_TILT_X: - mAbsTiltX = rawEvent->value; - break; - case ABS_TILT_Y: - mAbsTiltY = rawEvent->value; - break; - } - } -} - - -// --- MultiTouchMotionAccumulator --- - -MultiTouchMotionAccumulator::MultiTouchMotionAccumulator() : - mCurrentSlot(-1), mSlots(NULL), mSlotCount(0), mUsingSlotsProtocol(false), - mHaveStylus(false) { -} - -MultiTouchMotionAccumulator::~MultiTouchMotionAccumulator() { - delete[] mSlots; -} - -void MultiTouchMotionAccumulator::configure(InputDevice* device, - size_t slotCount, bool usingSlotsProtocol) { - mSlotCount = slotCount; - mUsingSlotsProtocol = usingSlotsProtocol; - mHaveStylus = device->hasAbsoluteAxis(ABS_MT_TOOL_TYPE); - - delete[] mSlots; - mSlots = new Slot[slotCount]; -} - -void MultiTouchMotionAccumulator::reset(InputDevice* device) { - // Unfortunately there is no way to read the initial contents of the slots. - // So when we reset the accumulator, we must assume they are all zeroes. - if (mUsingSlotsProtocol) { - // Query the driver for the current slot index and use it as the initial slot - // before we start reading events from the device. It is possible that the - // current slot index will not be the same as it was when the first event was - // written into the evdev buffer, which means the input mapper could start - // out of sync with the initial state of the events in the evdev buffer. - // In the extremely unlikely case that this happens, the data from - // two slots will be confused until the next ABS_MT_SLOT event is received. - // This can cause the touch point to "jump", but at least there will be - // no stuck touches. - int32_t initialSlot; - status_t status = device->getEventHub()->getAbsoluteAxisValue(device->getId(), - ABS_MT_SLOT, &initialSlot); - if (status) { - ALOGD("Could not retrieve current multitouch slot index. status=%d", status); - initialSlot = -1; - } - clearSlots(initialSlot); - } else { - clearSlots(-1); - } -} - -void MultiTouchMotionAccumulator::clearSlots(int32_t initialSlot) { - if (mSlots) { - for (size_t i = 0; i < mSlotCount; i++) { - mSlots[i].clear(); - } - } - mCurrentSlot = initialSlot; -} - -void MultiTouchMotionAccumulator::process(const RawEvent* rawEvent) { - if (rawEvent->type == EV_ABS) { -#if DEBUG_POINTERS - bool newSlot = false; -#endif - if (mUsingSlotsProtocol) { - if (rawEvent->code == ABS_MT_SLOT) { - mCurrentSlot = rawEvent->value; -#if DEBUG_POINTERS - newSlot = true; -#endif - } - } else if (mCurrentSlot < 0) { - mCurrentSlot = 0; - } - - if (mCurrentSlot < 0 || size_t(mCurrentSlot) >= mSlotCount) { -#if DEBUG_POINTERS - if (newSlot) { - ALOGW("MultiTouch device emitted invalid slot index %d but it " - "should be between 0 and %d; ignoring this slot.", - mCurrentSlot, mSlotCount - 1); - } -#endif - } else { - Slot* slot = &mSlots[mCurrentSlot]; - - switch (rawEvent->code) { - case ABS_MT_POSITION_X: - slot->mInUse = true; - slot->mAbsMTPositionX = rawEvent->value; - break; - case ABS_MT_POSITION_Y: - slot->mInUse = true; - slot->mAbsMTPositionY = rawEvent->value; - break; - case ABS_MT_TOUCH_MAJOR: - slot->mInUse = true; - slot->mAbsMTTouchMajor = rawEvent->value; - break; - case ABS_MT_TOUCH_MINOR: - slot->mInUse = true; - slot->mAbsMTTouchMinor = rawEvent->value; - slot->mHaveAbsMTTouchMinor = true; - break; - case ABS_MT_WIDTH_MAJOR: - slot->mInUse = true; - slot->mAbsMTWidthMajor = rawEvent->value; - break; - case ABS_MT_WIDTH_MINOR: - slot->mInUse = true; - slot->mAbsMTWidthMinor = rawEvent->value; - slot->mHaveAbsMTWidthMinor = true; - break; - case ABS_MT_ORIENTATION: - slot->mInUse = true; - slot->mAbsMTOrientation = rawEvent->value; - break; - case ABS_MT_TRACKING_ID: - if (mUsingSlotsProtocol && rawEvent->value < 0) { - // The slot is no longer in use but it retains its previous contents, - // which may be reused for subsequent touches. - slot->mInUse = false; - } else { - slot->mInUse = true; - slot->mAbsMTTrackingId = rawEvent->value; - } - break; - case ABS_MT_PRESSURE: - slot->mInUse = true; - slot->mAbsMTPressure = rawEvent->value; - break; - case ABS_MT_DISTANCE: - slot->mInUse = true; - slot->mAbsMTDistance = rawEvent->value; - break; - case ABS_MT_TOOL_TYPE: - slot->mInUse = true; - slot->mAbsMTToolType = rawEvent->value; - slot->mHaveAbsMTToolType = true; - break; - } - } - } else if (rawEvent->type == EV_SYN && rawEvent->code == SYN_MT_REPORT) { - // MultiTouch Sync: The driver has returned all data for *one* of the pointers. - mCurrentSlot += 1; - } -} - -void MultiTouchMotionAccumulator::finishSync() { - if (!mUsingSlotsProtocol) { - clearSlots(-1); - } -} - -bool MultiTouchMotionAccumulator::hasStylus() const { - return mHaveStylus; -} - - -// --- MultiTouchMotionAccumulator::Slot --- - -MultiTouchMotionAccumulator::Slot::Slot() { - clear(); -} - -void MultiTouchMotionAccumulator::Slot::clear() { - mInUse = false; - mHaveAbsMTTouchMinor = false; - mHaveAbsMTWidthMinor = false; - mHaveAbsMTToolType = false; - mAbsMTPositionX = 0; - mAbsMTPositionY = 0; - mAbsMTTouchMajor = 0; - mAbsMTTouchMinor = 0; - mAbsMTWidthMajor = 0; - mAbsMTWidthMinor = 0; - mAbsMTOrientation = 0; - mAbsMTTrackingId = -1; - mAbsMTPressure = 0; - mAbsMTDistance = 0; - mAbsMTToolType = 0; -} - -int32_t MultiTouchMotionAccumulator::Slot::getToolType() const { - if (mHaveAbsMTToolType) { - switch (mAbsMTToolType) { - case MT_TOOL_FINGER: - return AMOTION_EVENT_TOOL_TYPE_FINGER; - case MT_TOOL_PEN: - return AMOTION_EVENT_TOOL_TYPE_STYLUS; - } - } - return AMOTION_EVENT_TOOL_TYPE_UNKNOWN; -} - - -// --- InputMapper --- - -InputMapper::InputMapper(InputDevice* device) : - mDevice(device), mContext(device->getContext()) { -} - -InputMapper::~InputMapper() { -} - -void InputMapper::populateDeviceInfo(InputDeviceInfo* info) { - info->addSource(getSources()); -} - -void InputMapper::dump(String8& dump) { -} - -void InputMapper::configure(nsecs_t when, - const InputReaderConfiguration* config, uint32_t changes) { -} - -void InputMapper::reset(nsecs_t when) { -} - -void InputMapper::timeoutExpired(nsecs_t when) { -} - -int32_t InputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) { - return AKEY_STATE_UNKNOWN; -} - -int32_t InputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { - return AKEY_STATE_UNKNOWN; -} - -int32_t InputMapper::getSwitchState(uint32_t sourceMask, int32_t switchCode) { - return AKEY_STATE_UNKNOWN; -} - -bool InputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, - const int32_t* keyCodes, uint8_t* outFlags) { - return false; -} - -void InputMapper::vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, - int32_t token) { -} - -void InputMapper::cancelVibrate(int32_t token) { -} - -int32_t InputMapper::getMetaState() { - return 0; -} - -void InputMapper::fadePointer() { -} - -status_t InputMapper::getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo) { - return getEventHub()->getAbsoluteAxisInfo(getDeviceId(), axis, axisInfo); -} - -void InputMapper::bumpGeneration() { - mDevice->bumpGeneration(); -} - -void InputMapper::dumpRawAbsoluteAxisInfo(String8& dump, - const RawAbsoluteAxisInfo& axis, const char* name) { - if (axis.valid) { - dump.appendFormat(INDENT4 "%s: min=%d, max=%d, flat=%d, fuzz=%d, resolution=%d\n", - name, axis.minValue, axis.maxValue, axis.flat, axis.fuzz, axis.resolution); - } else { - dump.appendFormat(INDENT4 "%s: unknown range\n", name); - } -} - - -// --- SwitchInputMapper --- - -SwitchInputMapper::SwitchInputMapper(InputDevice* device) : - InputMapper(device), mUpdatedSwitchValues(0), mUpdatedSwitchMask(0) { -} - -SwitchInputMapper::~SwitchInputMapper() { -} - -uint32_t SwitchInputMapper::getSources() { - return AINPUT_SOURCE_SWITCH; -} - -void SwitchInputMapper::process(const RawEvent* rawEvent) { - switch (rawEvent->type) { - case EV_SW: - processSwitch(rawEvent->code, rawEvent->value); - break; - - case EV_SYN: - if (rawEvent->code == SYN_REPORT) { - sync(rawEvent->when); - } - } -} - -void SwitchInputMapper::processSwitch(int32_t switchCode, int32_t switchValue) { - if (switchCode >= 0 && switchCode < 32) { - if (switchValue) { - mUpdatedSwitchValues |= 1 << switchCode; - } - mUpdatedSwitchMask |= 1 << switchCode; - } -} - -void SwitchInputMapper::sync(nsecs_t when) { - if (mUpdatedSwitchMask) { - NotifySwitchArgs args(when, 0, mUpdatedSwitchValues, mUpdatedSwitchMask); - getListener()->notifySwitch(&args); - - mUpdatedSwitchValues = 0; - mUpdatedSwitchMask = 0; - } -} - -int32_t SwitchInputMapper::getSwitchState(uint32_t sourceMask, int32_t switchCode) { - return getEventHub()->getSwitchState(getDeviceId(), switchCode); -} - - -// --- VibratorInputMapper --- - -VibratorInputMapper::VibratorInputMapper(InputDevice* device) : - InputMapper(device), mVibrating(false) { -} - -VibratorInputMapper::~VibratorInputMapper() { -} - -uint32_t VibratorInputMapper::getSources() { - return 0; -} - -void VibratorInputMapper::populateDeviceInfo(InputDeviceInfo* info) { - InputMapper::populateDeviceInfo(info); - - info->setVibrator(true); -} - -void VibratorInputMapper::process(const RawEvent* rawEvent) { - // TODO: Handle FF_STATUS, although it does not seem to be widely supported. -} - -void VibratorInputMapper::vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, - int32_t token) { -#if DEBUG_VIBRATOR - String8 patternStr; - for (size_t i = 0; i < patternSize; i++) { - if (i != 0) { - patternStr.append(", "); - } - patternStr.appendFormat("%lld", pattern[i]); - } - ALOGD("vibrate: deviceId=%d, pattern=[%s], repeat=%ld, token=%d", - getDeviceId(), patternStr.string(), repeat, token); -#endif - - mVibrating = true; - memcpy(mPattern, pattern, patternSize * sizeof(nsecs_t)); - mPatternSize = patternSize; - mRepeat = repeat; - mToken = token; - mIndex = -1; - - nextStep(); -} - -void VibratorInputMapper::cancelVibrate(int32_t token) { -#if DEBUG_VIBRATOR - ALOGD("cancelVibrate: deviceId=%d, token=%d", getDeviceId(), token); -#endif - - if (mVibrating && mToken == token) { - stopVibrating(); - } -} - -void VibratorInputMapper::timeoutExpired(nsecs_t when) { - if (mVibrating) { - if (when >= mNextStepTime) { - nextStep(); - } else { - getContext()->requestTimeoutAtTime(mNextStepTime); - } - } -} - -void VibratorInputMapper::nextStep() { - mIndex += 1; - if (size_t(mIndex) >= mPatternSize) { - if (mRepeat < 0) { - // We are done. - stopVibrating(); - return; - } - mIndex = mRepeat; - } - - bool vibratorOn = mIndex & 1; - nsecs_t duration = mPattern[mIndex]; - if (vibratorOn) { -#if DEBUG_VIBRATOR - ALOGD("nextStep: sending vibrate deviceId=%d, duration=%lld", - getDeviceId(), duration); -#endif - getEventHub()->vibrate(getDeviceId(), duration); - } else { -#if DEBUG_VIBRATOR - ALOGD("nextStep: sending cancel vibrate deviceId=%d", getDeviceId()); -#endif - getEventHub()->cancelVibrate(getDeviceId()); - } - nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); - mNextStepTime = now + duration; - getContext()->requestTimeoutAtTime(mNextStepTime); -#if DEBUG_VIBRATOR - ALOGD("nextStep: scheduled timeout in %0.3fms", duration * 0.000001f); -#endif -} - -void VibratorInputMapper::stopVibrating() { - mVibrating = false; -#if DEBUG_VIBRATOR - ALOGD("stopVibrating: sending cancel vibrate deviceId=%d", getDeviceId()); -#endif - getEventHub()->cancelVibrate(getDeviceId()); -} - -void VibratorInputMapper::dump(String8& dump) { - dump.append(INDENT2 "Vibrator Input Mapper:\n"); - dump.appendFormat(INDENT3 "Vibrating: %s\n", toString(mVibrating)); -} - - -// --- KeyboardInputMapper --- - -KeyboardInputMapper::KeyboardInputMapper(InputDevice* device, - uint32_t source, int32_t keyboardType) : - InputMapper(device), mSource(source), - mKeyboardType(keyboardType) { -} - -KeyboardInputMapper::~KeyboardInputMapper() { -} - -uint32_t KeyboardInputMapper::getSources() { - return mSource; -} - -void KeyboardInputMapper::populateDeviceInfo(InputDeviceInfo* info) { - InputMapper::populateDeviceInfo(info); - - info->setKeyboardType(mKeyboardType); - info->setKeyCharacterMap(getEventHub()->getKeyCharacterMap(getDeviceId())); -} - -void KeyboardInputMapper::dump(String8& dump) { - dump.append(INDENT2 "Keyboard Input Mapper:\n"); - dumpParameters(dump); - dump.appendFormat(INDENT3 "KeyboardType: %d\n", mKeyboardType); - dump.appendFormat(INDENT3 "Orientation: %d\n", mOrientation); - dump.appendFormat(INDENT3 "KeyDowns: %d keys currently down\n", mKeyDowns.size()); - dump.appendFormat(INDENT3 "MetaState: 0x%0x\n", mMetaState); - dump.appendFormat(INDENT3 "DownTime: %lld\n", mDownTime); -} - - -void KeyboardInputMapper::configure(nsecs_t when, - const InputReaderConfiguration* config, uint32_t changes) { - InputMapper::configure(when, config, changes); - - if (!changes) { // first time only - // Configure basic parameters. - configureParameters(); - } - - if (!changes || (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) { - if (mParameters.orientationAware && mParameters.hasAssociatedDisplay) { - DisplayViewport v; - if (config->getDisplayInfo(false /*external*/, &v)) { - mOrientation = v.orientation; - } else { - mOrientation = DISPLAY_ORIENTATION_0; - } - } else { - mOrientation = DISPLAY_ORIENTATION_0; - } - } -} - -void KeyboardInputMapper::configureParameters() { - mParameters.orientationAware = false; - getDevice()->getConfiguration().tryGetProperty(String8("keyboard.orientationAware"), - mParameters.orientationAware); - - mParameters.hasAssociatedDisplay = false; - if (mParameters.orientationAware) { - mParameters.hasAssociatedDisplay = true; - } -} - -void KeyboardInputMapper::dumpParameters(String8& dump) { - dump.append(INDENT3 "Parameters:\n"); - dump.appendFormat(INDENT4 "HasAssociatedDisplay: %s\n", - toString(mParameters.hasAssociatedDisplay)); - dump.appendFormat(INDENT4 "OrientationAware: %s\n", - toString(mParameters.orientationAware)); -} - -void KeyboardInputMapper::reset(nsecs_t when) { - mMetaState = AMETA_NONE; - mDownTime = 0; - mKeyDowns.clear(); - mCurrentHidUsage = 0; - - resetLedState(); - - InputMapper::reset(when); -} - -void KeyboardInputMapper::process(const RawEvent* rawEvent) { - switch (rawEvent->type) { - case EV_KEY: { - int32_t scanCode = rawEvent->code; - int32_t usageCode = mCurrentHidUsage; - mCurrentHidUsage = 0; - - if (isKeyboardOrGamepadKey(scanCode)) { - int32_t keyCode; - uint32_t flags; - if (getEventHub()->mapKey(getDeviceId(), scanCode, usageCode, &keyCode, &flags)) { - keyCode = AKEYCODE_UNKNOWN; - flags = 0; - } - processKey(rawEvent->when, rawEvent->value != 0, keyCode, scanCode, flags); - } - break; - } - case EV_MSC: { - if (rawEvent->code == MSC_SCAN) { - mCurrentHidUsage = rawEvent->value; - } - break; - } - case EV_SYN: { - if (rawEvent->code == SYN_REPORT) { - mCurrentHidUsage = 0; - } - } - } -} - -bool KeyboardInputMapper::isKeyboardOrGamepadKey(int32_t scanCode) { - return scanCode < BTN_MOUSE - || scanCode >= KEY_OK - || (scanCode >= BTN_MISC && scanCode < BTN_MOUSE) - || (scanCode >= BTN_JOYSTICK && scanCode < BTN_DIGI); -} - -void KeyboardInputMapper::processKey(nsecs_t when, bool down, int32_t keyCode, - int32_t scanCode, uint32_t policyFlags) { - - if (down) { - // Rotate key codes according to orientation if needed. - if (mParameters.orientationAware && mParameters.hasAssociatedDisplay) { - keyCode = rotateKeyCode(keyCode, mOrientation); - } - - // Add key down. - ssize_t keyDownIndex = findKeyDown(scanCode); - if (keyDownIndex >= 0) { - // key repeat, be sure to use same keycode as before in case of rotation - keyCode = mKeyDowns.itemAt(keyDownIndex).keyCode; - } else { - // key down - if ((policyFlags & POLICY_FLAG_VIRTUAL) - && mContext->shouldDropVirtualKey(when, - getDevice(), keyCode, scanCode)) { - return; - } - - mKeyDowns.push(); - KeyDown& keyDown = mKeyDowns.editTop(); - keyDown.keyCode = keyCode; - keyDown.scanCode = scanCode; - } - - mDownTime = when; - } else { - // Remove key down. - ssize_t keyDownIndex = findKeyDown(scanCode); - if (keyDownIndex >= 0) { - // key up, be sure to use same keycode as before in case of rotation - keyCode = mKeyDowns.itemAt(keyDownIndex).keyCode; - mKeyDowns.removeAt(size_t(keyDownIndex)); - } else { - // key was not actually down - ALOGI("Dropping key up from device %s because the key was not down. " - "keyCode=%d, scanCode=%d", - getDeviceName().string(), keyCode, scanCode); - return; - } - } - - bool metaStateChanged = false; - int32_t oldMetaState = mMetaState; - int32_t newMetaState = updateMetaState(keyCode, down, oldMetaState); - if (oldMetaState != newMetaState) { - mMetaState = newMetaState; - metaStateChanged = true; - updateLedState(false); - } - - nsecs_t downTime = mDownTime; - - // Key down on external an keyboard should wake the device. - // We don't do this for internal keyboards to prevent them from waking up in your pocket. - // For internal keyboards, the key layout file should specify the policy flags for - // each wake key individually. - // TODO: Use the input device configuration to control this behavior more finely. - if (down && getDevice()->isExternal() - && !(policyFlags & (POLICY_FLAG_WAKE | POLICY_FLAG_WAKE_DROPPED))) { - policyFlags |= POLICY_FLAG_WAKE_DROPPED; - } - - if (metaStateChanged) { - getContext()->updateGlobalMetaState(); - } - - if (down && !isMetaKey(keyCode)) { - getContext()->fadePointer(); - } - - NotifyKeyArgs args(when, getDeviceId(), mSource, policyFlags, - down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP, - AKEY_EVENT_FLAG_FROM_SYSTEM, keyCode, scanCode, newMetaState, downTime); - getListener()->notifyKey(&args); -} - -ssize_t KeyboardInputMapper::findKeyDown(int32_t scanCode) { - size_t n = mKeyDowns.size(); - for (size_t i = 0; i < n; i++) { - if (mKeyDowns[i].scanCode == scanCode) { - return i; - } - } - return -1; -} - -int32_t KeyboardInputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) { - return getEventHub()->getKeyCodeState(getDeviceId(), keyCode); -} - -int32_t KeyboardInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { - return getEventHub()->getScanCodeState(getDeviceId(), scanCode); -} - -bool KeyboardInputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, - const int32_t* keyCodes, uint8_t* outFlags) { - return getEventHub()->markSupportedKeyCodes(getDeviceId(), numCodes, keyCodes, outFlags); -} - -int32_t KeyboardInputMapper::getMetaState() { - return mMetaState; -} - -void KeyboardInputMapper::resetLedState() { - initializeLedState(mCapsLockLedState, LED_CAPSL); - initializeLedState(mNumLockLedState, LED_NUML); - initializeLedState(mScrollLockLedState, LED_SCROLLL); - - updateLedState(true); -} - -void KeyboardInputMapper::initializeLedState(LedState& ledState, int32_t led) { - ledState.avail = getEventHub()->hasLed(getDeviceId(), led); - ledState.on = false; -} - -void KeyboardInputMapper::updateLedState(bool reset) { - updateLedStateForModifier(mCapsLockLedState, LED_CAPSL, - AMETA_CAPS_LOCK_ON, reset); - updateLedStateForModifier(mNumLockLedState, LED_NUML, - AMETA_NUM_LOCK_ON, reset); - updateLedStateForModifier(mScrollLockLedState, LED_SCROLLL, - AMETA_SCROLL_LOCK_ON, reset); -} - -void KeyboardInputMapper::updateLedStateForModifier(LedState& ledState, - int32_t led, int32_t modifier, bool reset) { - if (ledState.avail) { - bool desiredState = (mMetaState & modifier) != 0; - if (reset || ledState.on != desiredState) { - getEventHub()->setLedState(getDeviceId(), led, desiredState); - ledState.on = desiredState; - } - } -} - - -// --- CursorInputMapper --- - -CursorInputMapper::CursorInputMapper(InputDevice* device) : - InputMapper(device) { -} - -CursorInputMapper::~CursorInputMapper() { -} - -uint32_t CursorInputMapper::getSources() { - return mSource; -} - -void CursorInputMapper::populateDeviceInfo(InputDeviceInfo* info) { - InputMapper::populateDeviceInfo(info); - - if (mParameters.mode == Parameters::MODE_POINTER) { - float minX, minY, maxX, maxY; - if (mPointerController->getBounds(&minX, &minY, &maxX, &maxY)) { - info->addMotionRange(AMOTION_EVENT_AXIS_X, mSource, minX, maxX, 0.0f, 0.0f, 0.0f); - info->addMotionRange(AMOTION_EVENT_AXIS_Y, mSource, minY, maxY, 0.0f, 0.0f, 0.0f); - } - } else { - info->addMotionRange(AMOTION_EVENT_AXIS_X, mSource, -1.0f, 1.0f, 0.0f, mXScale, 0.0f); - info->addMotionRange(AMOTION_EVENT_AXIS_Y, mSource, -1.0f, 1.0f, 0.0f, mYScale, 0.0f); - } - info->addMotionRange(AMOTION_EVENT_AXIS_PRESSURE, mSource, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f); - - if (mCursorScrollAccumulator.haveRelativeVWheel()) { - info->addMotionRange(AMOTION_EVENT_AXIS_VSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f); - } - if (mCursorScrollAccumulator.haveRelativeHWheel()) { - info->addMotionRange(AMOTION_EVENT_AXIS_HSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f); - } -} - -void CursorInputMapper::dump(String8& dump) { - dump.append(INDENT2 "Cursor Input Mapper:\n"); - dumpParameters(dump); - dump.appendFormat(INDENT3 "XScale: %0.3f\n", mXScale); - dump.appendFormat(INDENT3 "YScale: %0.3f\n", mYScale); - dump.appendFormat(INDENT3 "XPrecision: %0.3f\n", mXPrecision); - dump.appendFormat(INDENT3 "YPrecision: %0.3f\n", mYPrecision); - dump.appendFormat(INDENT3 "HaveVWheel: %s\n", - toString(mCursorScrollAccumulator.haveRelativeVWheel())); - dump.appendFormat(INDENT3 "HaveHWheel: %s\n", - toString(mCursorScrollAccumulator.haveRelativeHWheel())); - dump.appendFormat(INDENT3 "VWheelScale: %0.3f\n", mVWheelScale); - dump.appendFormat(INDENT3 "HWheelScale: %0.3f\n", mHWheelScale); - dump.appendFormat(INDENT3 "Orientation: %d\n", mOrientation); - dump.appendFormat(INDENT3 "ButtonState: 0x%08x\n", mButtonState); - dump.appendFormat(INDENT3 "Down: %s\n", toString(isPointerDown(mButtonState))); - dump.appendFormat(INDENT3 "DownTime: %lld\n", mDownTime); -} - -void CursorInputMapper::configure(nsecs_t when, - const InputReaderConfiguration* config, uint32_t changes) { - InputMapper::configure(when, config, changes); - - if (!changes) { // first time only - mCursorScrollAccumulator.configure(getDevice()); - - // Configure basic parameters. - configureParameters(); - - // Configure device mode. - switch (mParameters.mode) { - case Parameters::MODE_POINTER: - mSource = AINPUT_SOURCE_MOUSE; - mXPrecision = 1.0f; - mYPrecision = 1.0f; - mXScale = 1.0f; - mYScale = 1.0f; - mPointerController = getPolicy()->obtainPointerController(getDeviceId()); - break; - case Parameters::MODE_NAVIGATION: - mSource = AINPUT_SOURCE_TRACKBALL; - mXPrecision = TRACKBALL_MOVEMENT_THRESHOLD; - mYPrecision = TRACKBALL_MOVEMENT_THRESHOLD; - mXScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD; - mYScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD; - break; - } - - mVWheelScale = 1.0f; - mHWheelScale = 1.0f; - } - - if (!changes || (changes & InputReaderConfiguration::CHANGE_POINTER_SPEED)) { - mPointerVelocityControl.setParameters(config->pointerVelocityControlParameters); - mWheelXVelocityControl.setParameters(config->wheelVelocityControlParameters); - mWheelYVelocityControl.setParameters(config->wheelVelocityControlParameters); - } - - if (!changes || (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) { - if (mParameters.orientationAware && mParameters.hasAssociatedDisplay) { - DisplayViewport v; - if (config->getDisplayInfo(false /*external*/, &v)) { - mOrientation = v.orientation; - } else { - mOrientation = DISPLAY_ORIENTATION_0; - } - } else { - mOrientation = DISPLAY_ORIENTATION_0; - } - bumpGeneration(); - } -} - -void CursorInputMapper::configureParameters() { - mParameters.mode = Parameters::MODE_POINTER; - String8 cursorModeString; - if (getDevice()->getConfiguration().tryGetProperty(String8("cursor.mode"), cursorModeString)) { - if (cursorModeString == "navigation") { - mParameters.mode = Parameters::MODE_NAVIGATION; - } else if (cursorModeString != "pointer" && cursorModeString != "default") { - ALOGW("Invalid value for cursor.mode: '%s'", cursorModeString.string()); - } - } - - mParameters.orientationAware = false; - getDevice()->getConfiguration().tryGetProperty(String8("cursor.orientationAware"), - mParameters.orientationAware); - - mParameters.hasAssociatedDisplay = false; - if (mParameters.mode == Parameters::MODE_POINTER || mParameters.orientationAware) { - mParameters.hasAssociatedDisplay = true; - } -} - -void CursorInputMapper::dumpParameters(String8& dump) { - dump.append(INDENT3 "Parameters:\n"); - dump.appendFormat(INDENT4 "HasAssociatedDisplay: %s\n", - toString(mParameters.hasAssociatedDisplay)); - - switch (mParameters.mode) { - case Parameters::MODE_POINTER: - dump.append(INDENT4 "Mode: pointer\n"); - break; - case Parameters::MODE_NAVIGATION: - dump.append(INDENT4 "Mode: navigation\n"); - break; - default: - ALOG_ASSERT(false); - } - - dump.appendFormat(INDENT4 "OrientationAware: %s\n", - toString(mParameters.orientationAware)); -} - -void CursorInputMapper::reset(nsecs_t when) { - mButtonState = 0; - mDownTime = 0; - - mPointerVelocityControl.reset(); - mWheelXVelocityControl.reset(); - mWheelYVelocityControl.reset(); - - mCursorButtonAccumulator.reset(getDevice()); - mCursorMotionAccumulator.reset(getDevice()); - mCursorScrollAccumulator.reset(getDevice()); - - InputMapper::reset(when); -} - -void CursorInputMapper::process(const RawEvent* rawEvent) { - mCursorButtonAccumulator.process(rawEvent); - mCursorMotionAccumulator.process(rawEvent); - mCursorScrollAccumulator.process(rawEvent); - - if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) { - sync(rawEvent->when); - } -} - -void CursorInputMapper::sync(nsecs_t when) { - int32_t lastButtonState = mButtonState; - int32_t currentButtonState = mCursorButtonAccumulator.getButtonState(); - mButtonState = currentButtonState; - - bool wasDown = isPointerDown(lastButtonState); - bool down = isPointerDown(currentButtonState); - bool downChanged; - if (!wasDown && down) { - mDownTime = when; - downChanged = true; - } else if (wasDown && !down) { - downChanged = true; - } else { - downChanged = false; - } - nsecs_t downTime = mDownTime; - bool buttonsChanged = currentButtonState != lastButtonState; - bool buttonsPressed = currentButtonState & ~lastButtonState; - - float deltaX = mCursorMotionAccumulator.getRelativeX() * mXScale; - float deltaY = mCursorMotionAccumulator.getRelativeY() * mYScale; - bool moved = deltaX != 0 || deltaY != 0; - - // Rotate delta according to orientation if needed. - if (mParameters.orientationAware && mParameters.hasAssociatedDisplay - && (deltaX != 0.0f || deltaY != 0.0f)) { - rotateDelta(mOrientation, &deltaX, &deltaY); - } - - // Move the pointer. - PointerProperties pointerProperties; - pointerProperties.clear(); - pointerProperties.id = 0; - pointerProperties.toolType = AMOTION_EVENT_TOOL_TYPE_MOUSE; - - PointerCoords pointerCoords; - pointerCoords.clear(); - - float vscroll = mCursorScrollAccumulator.getRelativeVWheel(); - float hscroll = mCursorScrollAccumulator.getRelativeHWheel(); - bool scrolled = vscroll != 0 || hscroll != 0; - - mWheelYVelocityControl.move(when, NULL, &vscroll); - mWheelXVelocityControl.move(when, &hscroll, NULL); - - mPointerVelocityControl.move(when, &deltaX, &deltaY); - - int32_t displayId; - if (mPointerController != NULL) { - if (moved || scrolled || buttonsChanged) { - mPointerController->setPresentation( - PointerControllerInterface::PRESENTATION_POINTER); - - if (moved) { - mPointerController->move(deltaX, deltaY); - } - - if (buttonsChanged) { - mPointerController->setButtonState(currentButtonState); - } - - mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE); - } - - float x, y; - mPointerController->getPosition(&x, &y); - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x); - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y); - displayId = ADISPLAY_ID_DEFAULT; - } else { - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, deltaX); - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, deltaY); - displayId = ADISPLAY_ID_NONE; - } - - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, down ? 1.0f : 0.0f); - - // Moving an external trackball or mouse should wake the device. - // We don't do this for internal cursor devices to prevent them from waking up - // the device in your pocket. - // TODO: Use the input device configuration to control this behavior more finely. - uint32_t policyFlags = 0; - if ((buttonsPressed || moved || scrolled) && getDevice()->isExternal()) { - policyFlags |= POLICY_FLAG_WAKE_DROPPED; - } - - // Synthesize key down from buttons if needed. - synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_DOWN, when, getDeviceId(), mSource, - policyFlags, lastButtonState, currentButtonState); - - // Send motion event. - if (downChanged || moved || scrolled || buttonsChanged) { - int32_t metaState = mContext->getGlobalMetaState(); - int32_t motionEventAction; - if (downChanged) { - motionEventAction = down ? AMOTION_EVENT_ACTION_DOWN : AMOTION_EVENT_ACTION_UP; - } else if (down || mPointerController == NULL) { - motionEventAction = AMOTION_EVENT_ACTION_MOVE; - } else { - motionEventAction = AMOTION_EVENT_ACTION_HOVER_MOVE; - } - - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - motionEventAction, 0, metaState, currentButtonState, 0, - displayId, 1, &pointerProperties, &pointerCoords, - mXPrecision, mYPrecision, downTime); - getListener()->notifyMotion(&args); - - // Send hover move after UP to tell the application that the mouse is hovering now. - if (motionEventAction == AMOTION_EVENT_ACTION_UP - && mPointerController != NULL) { - NotifyMotionArgs hoverArgs(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_HOVER_MOVE, 0, - metaState, currentButtonState, AMOTION_EVENT_EDGE_FLAG_NONE, - displayId, 1, &pointerProperties, &pointerCoords, - mXPrecision, mYPrecision, downTime); - getListener()->notifyMotion(&hoverArgs); - } - - // Send scroll events. - if (scrolled) { - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_VSCROLL, vscroll); - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_HSCROLL, hscroll); - - NotifyMotionArgs scrollArgs(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_SCROLL, 0, metaState, currentButtonState, - AMOTION_EVENT_EDGE_FLAG_NONE, - displayId, 1, &pointerProperties, &pointerCoords, - mXPrecision, mYPrecision, downTime); - getListener()->notifyMotion(&scrollArgs); - } - } - - // Synthesize key up from buttons if needed. - synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_UP, when, getDeviceId(), mSource, - policyFlags, lastButtonState, currentButtonState); - - mCursorMotionAccumulator.finishSync(); - mCursorScrollAccumulator.finishSync(); -} - -int32_t CursorInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { - if (scanCode >= BTN_MOUSE && scanCode < BTN_JOYSTICK) { - return getEventHub()->getScanCodeState(getDeviceId(), scanCode); - } else { - return AKEY_STATE_UNKNOWN; - } -} - -void CursorInputMapper::fadePointer() { - if (mPointerController != NULL) { - mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); - } -} - - -// --- TouchInputMapper --- - -TouchInputMapper::TouchInputMapper(InputDevice* device) : - InputMapper(device), - mSource(0), mDeviceMode(DEVICE_MODE_DISABLED), - mSurfaceWidth(-1), mSurfaceHeight(-1), mSurfaceLeft(0), mSurfaceTop(0), - mSurfaceOrientation(DISPLAY_ORIENTATION_0) { -} - -TouchInputMapper::~TouchInputMapper() { -} - -uint32_t TouchInputMapper::getSources() { - return mSource; -} - -void TouchInputMapper::populateDeviceInfo(InputDeviceInfo* info) { - InputMapper::populateDeviceInfo(info); - - if (mDeviceMode != DEVICE_MODE_DISABLED) { - info->addMotionRange(mOrientedRanges.x); - info->addMotionRange(mOrientedRanges.y); - info->addMotionRange(mOrientedRanges.pressure); - - if (mOrientedRanges.haveSize) { - info->addMotionRange(mOrientedRanges.size); - } - - if (mOrientedRanges.haveTouchSize) { - info->addMotionRange(mOrientedRanges.touchMajor); - info->addMotionRange(mOrientedRanges.touchMinor); - } - - if (mOrientedRanges.haveToolSize) { - info->addMotionRange(mOrientedRanges.toolMajor); - info->addMotionRange(mOrientedRanges.toolMinor); - } - - if (mOrientedRanges.haveOrientation) { - info->addMotionRange(mOrientedRanges.orientation); - } - - if (mOrientedRanges.haveDistance) { - info->addMotionRange(mOrientedRanges.distance); - } - - if (mOrientedRanges.haveTilt) { - info->addMotionRange(mOrientedRanges.tilt); - } - - if (mCursorScrollAccumulator.haveRelativeVWheel()) { - info->addMotionRange(AMOTION_EVENT_AXIS_VSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f, - 0.0f); - } - if (mCursorScrollAccumulator.haveRelativeHWheel()) { - info->addMotionRange(AMOTION_EVENT_AXIS_HSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f, - 0.0f); - } - if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_BOX) { - const InputDeviceInfo::MotionRange& x = mOrientedRanges.x; - const InputDeviceInfo::MotionRange& y = mOrientedRanges.y; - info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_1, mSource, x.min, x.max, x.flat, - x.fuzz, x.resolution); - info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_2, mSource, y.min, y.max, y.flat, - y.fuzz, y.resolution); - info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_3, mSource, x.min, x.max, x.flat, - x.fuzz, x.resolution); - info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_4, mSource, y.min, y.max, y.flat, - y.fuzz, y.resolution); - } - } -} - -void TouchInputMapper::dump(String8& dump) { - dump.append(INDENT2 "Touch Input Mapper:\n"); - dumpParameters(dump); - dumpVirtualKeys(dump); - dumpRawPointerAxes(dump); - dumpCalibration(dump); - dumpSurface(dump); - - dump.appendFormat(INDENT3 "Translation and Scaling Factors:\n"); - dump.appendFormat(INDENT4 "XTranslate: %0.3f\n", mXTranslate); - dump.appendFormat(INDENT4 "YTranslate: %0.3f\n", mYTranslate); - dump.appendFormat(INDENT4 "XScale: %0.3f\n", mXScale); - dump.appendFormat(INDENT4 "YScale: %0.3f\n", mYScale); - dump.appendFormat(INDENT4 "XPrecision: %0.3f\n", mXPrecision); - dump.appendFormat(INDENT4 "YPrecision: %0.3f\n", mYPrecision); - dump.appendFormat(INDENT4 "GeometricScale: %0.3f\n", mGeometricScale); - dump.appendFormat(INDENT4 "PressureScale: %0.3f\n", mPressureScale); - dump.appendFormat(INDENT4 "SizeScale: %0.3f\n", mSizeScale); - dump.appendFormat(INDENT4 "OrientationScale: %0.3f\n", mOrientationScale); - dump.appendFormat(INDENT4 "DistanceScale: %0.3f\n", mDistanceScale); - dump.appendFormat(INDENT4 "HaveTilt: %s\n", toString(mHaveTilt)); - dump.appendFormat(INDENT4 "TiltXCenter: %0.3f\n", mTiltXCenter); - dump.appendFormat(INDENT4 "TiltXScale: %0.3f\n", mTiltXScale); - dump.appendFormat(INDENT4 "TiltYCenter: %0.3f\n", mTiltYCenter); - dump.appendFormat(INDENT4 "TiltYScale: %0.3f\n", mTiltYScale); - - dump.appendFormat(INDENT3 "Last Button State: 0x%08x\n", mLastButtonState); - - dump.appendFormat(INDENT3 "Last Raw Touch: pointerCount=%d\n", - mLastRawPointerData.pointerCount); - for (uint32_t i = 0; i < mLastRawPointerData.pointerCount; i++) { - const RawPointerData::Pointer& pointer = mLastRawPointerData.pointers[i]; - dump.appendFormat(INDENT4 "[%d]: id=%d, x=%d, y=%d, pressure=%d, " - "touchMajor=%d, touchMinor=%d, toolMajor=%d, toolMinor=%d, " - "orientation=%d, tiltX=%d, tiltY=%d, distance=%d, " - "toolType=%d, isHovering=%s\n", i, - pointer.id, pointer.x, pointer.y, pointer.pressure, - pointer.touchMajor, pointer.touchMinor, - pointer.toolMajor, pointer.toolMinor, - pointer.orientation, pointer.tiltX, pointer.tiltY, pointer.distance, - pointer.toolType, toString(pointer.isHovering)); - } - - dump.appendFormat(INDENT3 "Last Cooked Touch: pointerCount=%d\n", - mLastCookedPointerData.pointerCount); - for (uint32_t i = 0; i < mLastCookedPointerData.pointerCount; i++) { - const PointerProperties& pointerProperties = mLastCookedPointerData.pointerProperties[i]; - const PointerCoords& pointerCoords = mLastCookedPointerData.pointerCoords[i]; - dump.appendFormat(INDENT4 "[%d]: id=%d, x=%0.3f, y=%0.3f, pressure=%0.3f, " - "touchMajor=%0.3f, touchMinor=%0.3f, toolMajor=%0.3f, toolMinor=%0.3f, " - "orientation=%0.3f, tilt=%0.3f, distance=%0.3f, " - "toolType=%d, isHovering=%s\n", i, - pointerProperties.id, - pointerCoords.getX(), - pointerCoords.getY(), - pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_PRESSURE), - pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR), - pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR), - pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR), - pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR), - pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION), - pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TILT), - pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_DISTANCE), - pointerProperties.toolType, - toString(mLastCookedPointerData.isHovering(i))); - } - - if (mDeviceMode == DEVICE_MODE_POINTER) { - dump.appendFormat(INDENT3 "Pointer Gesture Detector:\n"); - dump.appendFormat(INDENT4 "XMovementScale: %0.3f\n", - mPointerXMovementScale); - dump.appendFormat(INDENT4 "YMovementScale: %0.3f\n", - mPointerYMovementScale); - dump.appendFormat(INDENT4 "XZoomScale: %0.3f\n", - mPointerXZoomScale); - dump.appendFormat(INDENT4 "YZoomScale: %0.3f\n", - mPointerYZoomScale); - dump.appendFormat(INDENT4 "MaxSwipeWidth: %f\n", - mPointerGestureMaxSwipeWidth); - } -} - -void TouchInputMapper::configure(nsecs_t when, - const InputReaderConfiguration* config, uint32_t changes) { - InputMapper::configure(when, config, changes); - - mConfig = *config; - - if (!changes) { // first time only - // Configure basic parameters. - configureParameters(); - - // Configure common accumulators. - mCursorScrollAccumulator.configure(getDevice()); - mTouchButtonAccumulator.configure(getDevice()); - - // Configure absolute axis information. - configureRawPointerAxes(); - - // Prepare input device calibration. - parseCalibration(); - resolveCalibration(); - } - - if (!changes || (changes & InputReaderConfiguration::CHANGE_POINTER_SPEED)) { - // Update pointer speed. - mPointerVelocityControl.setParameters(mConfig.pointerVelocityControlParameters); - mWheelXVelocityControl.setParameters(mConfig.wheelVelocityControlParameters); - mWheelYVelocityControl.setParameters(mConfig.wheelVelocityControlParameters); - } - - bool resetNeeded = false; - if (!changes || (changes & (InputReaderConfiguration::CHANGE_DISPLAY_INFO - | InputReaderConfiguration::CHANGE_POINTER_GESTURE_ENABLEMENT - | InputReaderConfiguration::CHANGE_SHOW_TOUCHES))) { - // Configure device sources, surface dimensions, orientation and - // scaling factors. - configureSurface(when, &resetNeeded); - } - - if (changes && resetNeeded) { - // Send reset, unless this is the first time the device has been configured, - // in which case the reader will call reset itself after all mappers are ready. - getDevice()->notifyReset(when); - } -} - -void TouchInputMapper::configureParameters() { - // Use the pointer presentation mode for devices that do not support distinct - // multitouch. The spot-based presentation relies on being able to accurately - // locate two or more fingers on the touch pad. - mParameters.gestureMode = getEventHub()->hasInputProperty(getDeviceId(), INPUT_PROP_SEMI_MT) - ? Parameters::GESTURE_MODE_POINTER : Parameters::GESTURE_MODE_SPOTS; - - String8 gestureModeString; - if (getDevice()->getConfiguration().tryGetProperty(String8("touch.gestureMode"), - gestureModeString)) { - if (gestureModeString == "pointer") { - mParameters.gestureMode = Parameters::GESTURE_MODE_POINTER; - } else if (gestureModeString == "spots") { - mParameters.gestureMode = Parameters::GESTURE_MODE_SPOTS; - } else if (gestureModeString != "default") { - ALOGW("Invalid value for touch.gestureMode: '%s'", gestureModeString.string()); - } - } - - if (getEventHub()->hasInputProperty(getDeviceId(), INPUT_PROP_DIRECT)) { - // The device is a touch screen. - mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_SCREEN; - } else if (getEventHub()->hasInputProperty(getDeviceId(), INPUT_PROP_POINTER)) { - // The device is a pointing device like a track pad. - mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER; - } else if (getEventHub()->hasRelativeAxis(getDeviceId(), REL_X) - || getEventHub()->hasRelativeAxis(getDeviceId(), REL_Y)) { - // The device is a cursor device with a touch pad attached. - // By default don't use the touch pad to move the pointer. - mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_PAD; - } else { - // The device is a touch pad of unknown purpose. - mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER; - } - - String8 deviceTypeString; - if (getDevice()->getConfiguration().tryGetProperty(String8("touch.deviceType"), - deviceTypeString)) { - if (deviceTypeString == "touchScreen") { - mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_SCREEN; - } else if (deviceTypeString == "touchPad") { - mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_PAD; - } else if (deviceTypeString == "touchNavigation") { - mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_NAVIGATION; - } else if (deviceTypeString == "pointer") { - mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER; - } else if (deviceTypeString != "default") { - ALOGW("Invalid value for touch.deviceType: '%s'", deviceTypeString.string()); - } - } - - mParameters.orientationAware = mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN; - getDevice()->getConfiguration().tryGetProperty(String8("touch.orientationAware"), - mParameters.orientationAware); - - mParameters.hasAssociatedDisplay = false; - mParameters.associatedDisplayIsExternal = false; - if (mParameters.orientationAware - || mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN - || mParameters.deviceType == Parameters::DEVICE_TYPE_POINTER) { - mParameters.hasAssociatedDisplay = true; - mParameters.associatedDisplayIsExternal = - mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN - && getDevice()->isExternal(); - } -} - -void TouchInputMapper::dumpParameters(String8& dump) { - dump.append(INDENT3 "Parameters:\n"); - - switch (mParameters.gestureMode) { - case Parameters::GESTURE_MODE_POINTER: - dump.append(INDENT4 "GestureMode: pointer\n"); - break; - case Parameters::GESTURE_MODE_SPOTS: - dump.append(INDENT4 "GestureMode: spots\n"); - break; - default: - assert(false); - } - - switch (mParameters.deviceType) { - case Parameters::DEVICE_TYPE_TOUCH_SCREEN: - dump.append(INDENT4 "DeviceType: touchScreen\n"); - break; - case Parameters::DEVICE_TYPE_TOUCH_PAD: - dump.append(INDENT4 "DeviceType: touchPad\n"); - break; - case Parameters::DEVICE_TYPE_TOUCH_NAVIGATION: - dump.append(INDENT4 "DeviceType: touchNavigation\n"); - break; - case Parameters::DEVICE_TYPE_POINTER: - dump.append(INDENT4 "DeviceType: pointer\n"); - break; - default: - ALOG_ASSERT(false); - } - - dump.appendFormat(INDENT4 "AssociatedDisplay: hasAssociatedDisplay=%s, isExternal=%s\n", - toString(mParameters.hasAssociatedDisplay), - toString(mParameters.associatedDisplayIsExternal)); - dump.appendFormat(INDENT4 "OrientationAware: %s\n", - toString(mParameters.orientationAware)); -} - -void TouchInputMapper::configureRawPointerAxes() { - mRawPointerAxes.clear(); -} - -void TouchInputMapper::dumpRawPointerAxes(String8& dump) { - dump.append(INDENT3 "Raw Touch Axes:\n"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.x, "X"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.y, "Y"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.pressure, "Pressure"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.touchMajor, "TouchMajor"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.touchMinor, "TouchMinor"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.toolMajor, "ToolMajor"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.toolMinor, "ToolMinor"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.orientation, "Orientation"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.distance, "Distance"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.tiltX, "TiltX"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.tiltY, "TiltY"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.trackingId, "TrackingId"); - dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.slot, "Slot"); -} - -void TouchInputMapper::configureSurface(nsecs_t when, bool* outResetNeeded) { - int32_t oldDeviceMode = mDeviceMode; - - // Determine device mode. - if (mParameters.deviceType == Parameters::DEVICE_TYPE_POINTER - && mConfig.pointerGesturesEnabled) { - mSource = AINPUT_SOURCE_MOUSE; - mDeviceMode = DEVICE_MODE_POINTER; - if (hasStylus()) { - mSource |= AINPUT_SOURCE_STYLUS; - } - } else if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN - && mParameters.hasAssociatedDisplay) { - mSource = AINPUT_SOURCE_TOUCHSCREEN; - mDeviceMode = DEVICE_MODE_DIRECT; - if (hasStylus()) { - mSource |= AINPUT_SOURCE_STYLUS; - } - } else if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_NAVIGATION) { - mSource = AINPUT_SOURCE_TOUCH_NAVIGATION; - mDeviceMode = DEVICE_MODE_NAVIGATION; - } else { - mSource = AINPUT_SOURCE_TOUCHPAD; - mDeviceMode = DEVICE_MODE_UNSCALED; - } - - // Ensure we have valid X and Y axes. - if (!mRawPointerAxes.x.valid || !mRawPointerAxes.y.valid) { - ALOGW(INDENT "Touch device '%s' did not report support for X or Y axis! " - "The device will be inoperable.", getDeviceName().string()); - mDeviceMode = DEVICE_MODE_DISABLED; - return; - } - - // Raw width and height in the natural orientation. - int32_t rawWidth = mRawPointerAxes.x.maxValue - mRawPointerAxes.x.minValue + 1; - int32_t rawHeight = mRawPointerAxes.y.maxValue - mRawPointerAxes.y.minValue + 1; - - // Get associated display dimensions. - bool viewportChanged = false; - DisplayViewport newViewport; - if (mParameters.hasAssociatedDisplay) { - if (!mConfig.getDisplayInfo(mParameters.associatedDisplayIsExternal, &newViewport)) { - ALOGI(INDENT "Touch device '%s' could not query the properties of its associated " - "display. The device will be inoperable until the display size " - "becomes available.", - getDeviceName().string()); - mDeviceMode = DEVICE_MODE_DISABLED; - return; - } - } else { - newViewport.setNonDisplayViewport(rawWidth, rawHeight); - } - if (mViewport != newViewport) { - mViewport = newViewport; - viewportChanged = true; - - if (mDeviceMode == DEVICE_MODE_DIRECT || mDeviceMode == DEVICE_MODE_POINTER) { - // Convert rotated viewport to natural surface coordinates. - int32_t naturalLogicalWidth, naturalLogicalHeight; - int32_t naturalPhysicalWidth, naturalPhysicalHeight; - int32_t naturalPhysicalLeft, naturalPhysicalTop; - int32_t naturalDeviceWidth, naturalDeviceHeight; - switch (mViewport.orientation) { - case DISPLAY_ORIENTATION_90: - naturalLogicalWidth = mViewport.logicalBottom - mViewport.logicalTop; - naturalLogicalHeight = mViewport.logicalRight - mViewport.logicalLeft; - naturalPhysicalWidth = mViewport.physicalBottom - mViewport.physicalTop; - naturalPhysicalHeight = mViewport.physicalRight - mViewport.physicalLeft; - naturalPhysicalLeft = mViewport.deviceHeight - mViewport.physicalBottom; - naturalPhysicalTop = mViewport.physicalLeft; - naturalDeviceWidth = mViewport.deviceHeight; - naturalDeviceHeight = mViewport.deviceWidth; - break; - case DISPLAY_ORIENTATION_180: - naturalLogicalWidth = mViewport.logicalRight - mViewport.logicalLeft; - naturalLogicalHeight = mViewport.logicalBottom - mViewport.logicalTop; - naturalPhysicalWidth = mViewport.physicalRight - mViewport.physicalLeft; - naturalPhysicalHeight = mViewport.physicalBottom - mViewport.physicalTop; - naturalPhysicalLeft = mViewport.deviceWidth - mViewport.physicalRight; - naturalPhysicalTop = mViewport.deviceHeight - mViewport.physicalBottom; - naturalDeviceWidth = mViewport.deviceWidth; - naturalDeviceHeight = mViewport.deviceHeight; - break; - case DISPLAY_ORIENTATION_270: - naturalLogicalWidth = mViewport.logicalBottom - mViewport.logicalTop; - naturalLogicalHeight = mViewport.logicalRight - mViewport.logicalLeft; - naturalPhysicalWidth = mViewport.physicalBottom - mViewport.physicalTop; - naturalPhysicalHeight = mViewport.physicalRight - mViewport.physicalLeft; - naturalPhysicalLeft = mViewport.physicalTop; - naturalPhysicalTop = mViewport.deviceWidth - mViewport.physicalRight; - naturalDeviceWidth = mViewport.deviceHeight; - naturalDeviceHeight = mViewport.deviceWidth; - break; - case DISPLAY_ORIENTATION_0: - default: - naturalLogicalWidth = mViewport.logicalRight - mViewport.logicalLeft; - naturalLogicalHeight = mViewport.logicalBottom - mViewport.logicalTop; - naturalPhysicalWidth = mViewport.physicalRight - mViewport.physicalLeft; - naturalPhysicalHeight = mViewport.physicalBottom - mViewport.physicalTop; - naturalPhysicalLeft = mViewport.physicalLeft; - naturalPhysicalTop = mViewport.physicalTop; - naturalDeviceWidth = mViewport.deviceWidth; - naturalDeviceHeight = mViewport.deviceHeight; - break; - } - - mSurfaceWidth = naturalLogicalWidth * naturalDeviceWidth / naturalPhysicalWidth; - mSurfaceHeight = naturalLogicalHeight * naturalDeviceHeight / naturalPhysicalHeight; - mSurfaceLeft = naturalPhysicalLeft * naturalLogicalWidth / naturalPhysicalWidth; - mSurfaceTop = naturalPhysicalTop * naturalLogicalHeight / naturalPhysicalHeight; - - mSurfaceOrientation = mParameters.orientationAware ? - mViewport.orientation : DISPLAY_ORIENTATION_0; - } else { - mSurfaceWidth = rawWidth; - mSurfaceHeight = rawHeight; - mSurfaceLeft = 0; - mSurfaceTop = 0; - mSurfaceOrientation = DISPLAY_ORIENTATION_0; - } - } - - // If moving between pointer modes, need to reset some state. - bool deviceModeChanged = mDeviceMode != oldDeviceMode; - if (deviceModeChanged) { - mOrientedRanges.clear(); - } - - // Create pointer controller if needed. - if (mDeviceMode == DEVICE_MODE_POINTER || - (mDeviceMode == DEVICE_MODE_DIRECT && mConfig.showTouches)) { - if (mPointerController == NULL) { - mPointerController = getPolicy()->obtainPointerController(getDeviceId()); - } - } else { - mPointerController.clear(); - } - - if (viewportChanged || deviceModeChanged) { - ALOGI("Device reconfigured: id=%d, name='%s', size %dx%d, orientation %d, mode %d, " - "display id %d", - getDeviceId(), getDeviceName().string(), mSurfaceWidth, mSurfaceHeight, - mSurfaceOrientation, mDeviceMode, mViewport.displayId); - - // Configure X and Y factors. - mXScale = float(mSurfaceWidth) / rawWidth; - mYScale = float(mSurfaceHeight) / rawHeight; - mXTranslate = -mSurfaceLeft; - mYTranslate = -mSurfaceTop; - mXPrecision = 1.0f / mXScale; - mYPrecision = 1.0f / mYScale; - - mOrientedRanges.x.axis = AMOTION_EVENT_AXIS_X; - mOrientedRanges.x.source = mSource; - mOrientedRanges.y.axis = AMOTION_EVENT_AXIS_Y; - mOrientedRanges.y.source = mSource; - - configureVirtualKeys(); - - // Scale factor for terms that are not oriented in a particular axis. - // If the pixels are square then xScale == yScale otherwise we fake it - // by choosing an average. - mGeometricScale = avg(mXScale, mYScale); - - // Size of diagonal axis. - float diagonalSize = hypotf(mSurfaceWidth, mSurfaceHeight); - - // Size factors. - if (mCalibration.sizeCalibration != Calibration::SIZE_CALIBRATION_NONE) { - if (mRawPointerAxes.touchMajor.valid - && mRawPointerAxes.touchMajor.maxValue != 0) { - mSizeScale = 1.0f / mRawPointerAxes.touchMajor.maxValue; - } else if (mRawPointerAxes.toolMajor.valid - && mRawPointerAxes.toolMajor.maxValue != 0) { - mSizeScale = 1.0f / mRawPointerAxes.toolMajor.maxValue; - } else { - mSizeScale = 0.0f; - } - - mOrientedRanges.haveTouchSize = true; - mOrientedRanges.haveToolSize = true; - mOrientedRanges.haveSize = true; - - mOrientedRanges.touchMajor.axis = AMOTION_EVENT_AXIS_TOUCH_MAJOR; - mOrientedRanges.touchMajor.source = mSource; - mOrientedRanges.touchMajor.min = 0; - mOrientedRanges.touchMajor.max = diagonalSize; - mOrientedRanges.touchMajor.flat = 0; - mOrientedRanges.touchMajor.fuzz = 0; - mOrientedRanges.touchMajor.resolution = 0; - - mOrientedRanges.touchMinor = mOrientedRanges.touchMajor; - mOrientedRanges.touchMinor.axis = AMOTION_EVENT_AXIS_TOUCH_MINOR; - - mOrientedRanges.toolMajor.axis = AMOTION_EVENT_AXIS_TOOL_MAJOR; - mOrientedRanges.toolMajor.source = mSource; - mOrientedRanges.toolMajor.min = 0; - mOrientedRanges.toolMajor.max = diagonalSize; - mOrientedRanges.toolMajor.flat = 0; - mOrientedRanges.toolMajor.fuzz = 0; - mOrientedRanges.toolMajor.resolution = 0; - - mOrientedRanges.toolMinor = mOrientedRanges.toolMajor; - mOrientedRanges.toolMinor.axis = AMOTION_EVENT_AXIS_TOOL_MINOR; - - mOrientedRanges.size.axis = AMOTION_EVENT_AXIS_SIZE; - mOrientedRanges.size.source = mSource; - mOrientedRanges.size.min = 0; - mOrientedRanges.size.max = 1.0; - mOrientedRanges.size.flat = 0; - mOrientedRanges.size.fuzz = 0; - mOrientedRanges.size.resolution = 0; - } else { - mSizeScale = 0.0f; - } - - // Pressure factors. - mPressureScale = 0; - if (mCalibration.pressureCalibration == Calibration::PRESSURE_CALIBRATION_PHYSICAL - || mCalibration.pressureCalibration - == Calibration::PRESSURE_CALIBRATION_AMPLITUDE) { - if (mCalibration.havePressureScale) { - mPressureScale = mCalibration.pressureScale; - } else if (mRawPointerAxes.pressure.valid - && mRawPointerAxes.pressure.maxValue != 0) { - mPressureScale = 1.0f / mRawPointerAxes.pressure.maxValue; - } - } - - mOrientedRanges.pressure.axis = AMOTION_EVENT_AXIS_PRESSURE; - mOrientedRanges.pressure.source = mSource; - mOrientedRanges.pressure.min = 0; - mOrientedRanges.pressure.max = 1.0; - mOrientedRanges.pressure.flat = 0; - mOrientedRanges.pressure.fuzz = 0; - mOrientedRanges.pressure.resolution = 0; - - // Tilt - mTiltXCenter = 0; - mTiltXScale = 0; - mTiltYCenter = 0; - mTiltYScale = 0; - mHaveTilt = mRawPointerAxes.tiltX.valid && mRawPointerAxes.tiltY.valid; - if (mHaveTilt) { - mTiltXCenter = avg(mRawPointerAxes.tiltX.minValue, - mRawPointerAxes.tiltX.maxValue); - mTiltYCenter = avg(mRawPointerAxes.tiltY.minValue, - mRawPointerAxes.tiltY.maxValue); - mTiltXScale = M_PI / 180; - mTiltYScale = M_PI / 180; - - mOrientedRanges.haveTilt = true; - - mOrientedRanges.tilt.axis = AMOTION_EVENT_AXIS_TILT; - mOrientedRanges.tilt.source = mSource; - mOrientedRanges.tilt.min = 0; - mOrientedRanges.tilt.max = M_PI_2; - mOrientedRanges.tilt.flat = 0; - mOrientedRanges.tilt.fuzz = 0; - mOrientedRanges.tilt.resolution = 0; - } - - // Orientation - mOrientationScale = 0; - if (mHaveTilt) { - mOrientedRanges.haveOrientation = true; - - mOrientedRanges.orientation.axis = AMOTION_EVENT_AXIS_ORIENTATION; - mOrientedRanges.orientation.source = mSource; - mOrientedRanges.orientation.min = -M_PI; - mOrientedRanges.orientation.max = M_PI; - mOrientedRanges.orientation.flat = 0; - mOrientedRanges.orientation.fuzz = 0; - mOrientedRanges.orientation.resolution = 0; - } else if (mCalibration.orientationCalibration != - Calibration::ORIENTATION_CALIBRATION_NONE) { - if (mCalibration.orientationCalibration - == Calibration::ORIENTATION_CALIBRATION_INTERPOLATED) { - if (mRawPointerAxes.orientation.valid) { - if (mRawPointerAxes.orientation.maxValue > 0) { - mOrientationScale = M_PI_2 / mRawPointerAxes.orientation.maxValue; - } else if (mRawPointerAxes.orientation.minValue < 0) { - mOrientationScale = -M_PI_2 / mRawPointerAxes.orientation.minValue; - } else { - mOrientationScale = 0; - } - } - } - - mOrientedRanges.haveOrientation = true; - - mOrientedRanges.orientation.axis = AMOTION_EVENT_AXIS_ORIENTATION; - mOrientedRanges.orientation.source = mSource; - mOrientedRanges.orientation.min = -M_PI_2; - mOrientedRanges.orientation.max = M_PI_2; - mOrientedRanges.orientation.flat = 0; - mOrientedRanges.orientation.fuzz = 0; - mOrientedRanges.orientation.resolution = 0; - } - - // Distance - mDistanceScale = 0; - if (mCalibration.distanceCalibration != Calibration::DISTANCE_CALIBRATION_NONE) { - if (mCalibration.distanceCalibration - == Calibration::DISTANCE_CALIBRATION_SCALED) { - if (mCalibration.haveDistanceScale) { - mDistanceScale = mCalibration.distanceScale; - } else { - mDistanceScale = 1.0f; - } - } - - mOrientedRanges.haveDistance = true; - - mOrientedRanges.distance.axis = AMOTION_EVENT_AXIS_DISTANCE; - mOrientedRanges.distance.source = mSource; - mOrientedRanges.distance.min = - mRawPointerAxes.distance.minValue * mDistanceScale; - mOrientedRanges.distance.max = - mRawPointerAxes.distance.maxValue * mDistanceScale; - mOrientedRanges.distance.flat = 0; - mOrientedRanges.distance.fuzz = - mRawPointerAxes.distance.fuzz * mDistanceScale; - mOrientedRanges.distance.resolution = 0; - } - - // Compute oriented precision, scales and ranges. - // Note that the maximum value reported is an inclusive maximum value so it is one - // unit less than the total width or height of surface. - switch (mSurfaceOrientation) { - case DISPLAY_ORIENTATION_90: - case DISPLAY_ORIENTATION_270: - mOrientedXPrecision = mYPrecision; - mOrientedYPrecision = mXPrecision; - - mOrientedRanges.x.min = mYTranslate; - mOrientedRanges.x.max = mSurfaceHeight + mYTranslate - 1; - mOrientedRanges.x.flat = 0; - mOrientedRanges.x.fuzz = 0; - mOrientedRanges.x.resolution = mRawPointerAxes.y.resolution * mYScale; - - mOrientedRanges.y.min = mXTranslate; - mOrientedRanges.y.max = mSurfaceWidth + mXTranslate - 1; - mOrientedRanges.y.flat = 0; - mOrientedRanges.y.fuzz = 0; - mOrientedRanges.y.resolution = mRawPointerAxes.x.resolution * mXScale; - break; - - default: - mOrientedXPrecision = mXPrecision; - mOrientedYPrecision = mYPrecision; - - mOrientedRanges.x.min = mXTranslate; - mOrientedRanges.x.max = mSurfaceWidth + mXTranslate - 1; - mOrientedRanges.x.flat = 0; - mOrientedRanges.x.fuzz = 0; - mOrientedRanges.x.resolution = mRawPointerAxes.x.resolution * mXScale; - - mOrientedRanges.y.min = mYTranslate; - mOrientedRanges.y.max = mSurfaceHeight + mYTranslate - 1; - mOrientedRanges.y.flat = 0; - mOrientedRanges.y.fuzz = 0; - mOrientedRanges.y.resolution = mRawPointerAxes.y.resolution * mYScale; - break; - } - - if (mDeviceMode == DEVICE_MODE_POINTER) { - // Compute pointer gesture detection parameters. - float rawDiagonal = hypotf(rawWidth, rawHeight); - float displayDiagonal = hypotf(mSurfaceWidth, mSurfaceHeight); - - // Scale movements such that one whole swipe of the touch pad covers a - // given area relative to the diagonal size of the display when no acceleration - // is applied. - // Assume that the touch pad has a square aspect ratio such that movements in - // X and Y of the same number of raw units cover the same physical distance. - mPointerXMovementScale = mConfig.pointerGestureMovementSpeedRatio - * displayDiagonal / rawDiagonal; - mPointerYMovementScale = mPointerXMovementScale; - - // Scale zooms to cover a smaller range of the display than movements do. - // This value determines the area around the pointer that is affected by freeform - // pointer gestures. - mPointerXZoomScale = mConfig.pointerGestureZoomSpeedRatio - * displayDiagonal / rawDiagonal; - mPointerYZoomScale = mPointerXZoomScale; - - // Max width between pointers to detect a swipe gesture is more than some fraction - // of the diagonal axis of the touch pad. Touches that are wider than this are - // translated into freeform gestures. - mPointerGestureMaxSwipeWidth = - mConfig.pointerGestureSwipeMaxWidthRatio * rawDiagonal; - - // Abort current pointer usages because the state has changed. - abortPointerUsage(when, 0 /*policyFlags*/); - } - - // Inform the dispatcher about the changes. - *outResetNeeded = true; - bumpGeneration(); - } -} - -void TouchInputMapper::dumpSurface(String8& dump) { - dump.appendFormat(INDENT3 "Viewport: displayId=%d, orientation=%d, " - "logicalFrame=[%d, %d, %d, %d], " - "physicalFrame=[%d, %d, %d, %d], " - "deviceSize=[%d, %d]\n", - mViewport.displayId, mViewport.orientation, - mViewport.logicalLeft, mViewport.logicalTop, - mViewport.logicalRight, mViewport.logicalBottom, - mViewport.physicalLeft, mViewport.physicalTop, - mViewport.physicalRight, mViewport.physicalBottom, - mViewport.deviceWidth, mViewport.deviceHeight); - - dump.appendFormat(INDENT3 "SurfaceWidth: %dpx\n", mSurfaceWidth); - dump.appendFormat(INDENT3 "SurfaceHeight: %dpx\n", mSurfaceHeight); - dump.appendFormat(INDENT3 "SurfaceLeft: %d\n", mSurfaceLeft); - dump.appendFormat(INDENT3 "SurfaceTop: %d\n", mSurfaceTop); - dump.appendFormat(INDENT3 "SurfaceOrientation: %d\n", mSurfaceOrientation); -} - -void TouchInputMapper::configureVirtualKeys() { - Vector<VirtualKeyDefinition> virtualKeyDefinitions; - getEventHub()->getVirtualKeyDefinitions(getDeviceId(), virtualKeyDefinitions); - - mVirtualKeys.clear(); - - if (virtualKeyDefinitions.size() == 0) { - return; - } - - mVirtualKeys.setCapacity(virtualKeyDefinitions.size()); - - int32_t touchScreenLeft = mRawPointerAxes.x.minValue; - int32_t touchScreenTop = mRawPointerAxes.y.minValue; - int32_t touchScreenWidth = mRawPointerAxes.x.maxValue - mRawPointerAxes.x.minValue + 1; - int32_t touchScreenHeight = mRawPointerAxes.y.maxValue - mRawPointerAxes.y.minValue + 1; - - for (size_t i = 0; i < virtualKeyDefinitions.size(); i++) { - const VirtualKeyDefinition& virtualKeyDefinition = - virtualKeyDefinitions[i]; - - mVirtualKeys.add(); - VirtualKey& virtualKey = mVirtualKeys.editTop(); - - virtualKey.scanCode = virtualKeyDefinition.scanCode; - int32_t keyCode; - uint32_t flags; - if (getEventHub()->mapKey(getDeviceId(), virtualKey.scanCode, 0, &keyCode, &flags)) { - ALOGW(INDENT "VirtualKey %d: could not obtain key code, ignoring", - virtualKey.scanCode); - mVirtualKeys.pop(); // drop the key - continue; - } - - virtualKey.keyCode = keyCode; - virtualKey.flags = flags; - - // convert the key definition's display coordinates into touch coordinates for a hit box - int32_t halfWidth = virtualKeyDefinition.width / 2; - int32_t halfHeight = virtualKeyDefinition.height / 2; - - virtualKey.hitLeft = (virtualKeyDefinition.centerX - halfWidth) - * touchScreenWidth / mSurfaceWidth + touchScreenLeft; - virtualKey.hitRight= (virtualKeyDefinition.centerX + halfWidth) - * touchScreenWidth / mSurfaceWidth + touchScreenLeft; - virtualKey.hitTop = (virtualKeyDefinition.centerY - halfHeight) - * touchScreenHeight / mSurfaceHeight + touchScreenTop; - virtualKey.hitBottom = (virtualKeyDefinition.centerY + halfHeight) - * touchScreenHeight / mSurfaceHeight + touchScreenTop; - } -} - -void TouchInputMapper::dumpVirtualKeys(String8& dump) { - if (!mVirtualKeys.isEmpty()) { - dump.append(INDENT3 "Virtual Keys:\n"); - - for (size_t i = 0; i < mVirtualKeys.size(); i++) { - const VirtualKey& virtualKey = mVirtualKeys.itemAt(i); - dump.appendFormat(INDENT4 "%d: scanCode=%d, keyCode=%d, " - "hitLeft=%d, hitRight=%d, hitTop=%d, hitBottom=%d\n", - i, virtualKey.scanCode, virtualKey.keyCode, - virtualKey.hitLeft, virtualKey.hitRight, - virtualKey.hitTop, virtualKey.hitBottom); - } - } -} - -void TouchInputMapper::parseCalibration() { - const PropertyMap& in = getDevice()->getConfiguration(); - Calibration& out = mCalibration; - - // Size - out.sizeCalibration = Calibration::SIZE_CALIBRATION_DEFAULT; - String8 sizeCalibrationString; - if (in.tryGetProperty(String8("touch.size.calibration"), sizeCalibrationString)) { - if (sizeCalibrationString == "none") { - out.sizeCalibration = Calibration::SIZE_CALIBRATION_NONE; - } else if (sizeCalibrationString == "geometric") { - out.sizeCalibration = Calibration::SIZE_CALIBRATION_GEOMETRIC; - } else if (sizeCalibrationString == "diameter") { - out.sizeCalibration = Calibration::SIZE_CALIBRATION_DIAMETER; - } else if (sizeCalibrationString == "box") { - out.sizeCalibration = Calibration::SIZE_CALIBRATION_BOX; - } else if (sizeCalibrationString == "area") { - out.sizeCalibration = Calibration::SIZE_CALIBRATION_AREA; - } else if (sizeCalibrationString != "default") { - ALOGW("Invalid value for touch.size.calibration: '%s'", - sizeCalibrationString.string()); - } - } - - out.haveSizeScale = in.tryGetProperty(String8("touch.size.scale"), - out.sizeScale); - out.haveSizeBias = in.tryGetProperty(String8("touch.size.bias"), - out.sizeBias); - out.haveSizeIsSummed = in.tryGetProperty(String8("touch.size.isSummed"), - out.sizeIsSummed); - - // Pressure - out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_DEFAULT; - String8 pressureCalibrationString; - if (in.tryGetProperty(String8("touch.pressure.calibration"), pressureCalibrationString)) { - if (pressureCalibrationString == "none") { - out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_NONE; - } else if (pressureCalibrationString == "physical") { - out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_PHYSICAL; - } else if (pressureCalibrationString == "amplitude") { - out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_AMPLITUDE; - } else if (pressureCalibrationString != "default") { - ALOGW("Invalid value for touch.pressure.calibration: '%s'", - pressureCalibrationString.string()); - } - } - - out.havePressureScale = in.tryGetProperty(String8("touch.pressure.scale"), - out.pressureScale); - - // Orientation - out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_DEFAULT; - String8 orientationCalibrationString; - if (in.tryGetProperty(String8("touch.orientation.calibration"), orientationCalibrationString)) { - if (orientationCalibrationString == "none") { - out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE; - } else if (orientationCalibrationString == "interpolated") { - out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED; - } else if (orientationCalibrationString == "vector") { - out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_VECTOR; - } else if (orientationCalibrationString != "default") { - ALOGW("Invalid value for touch.orientation.calibration: '%s'", - orientationCalibrationString.string()); - } - } - - // Distance - out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_DEFAULT; - String8 distanceCalibrationString; - if (in.tryGetProperty(String8("touch.distance.calibration"), distanceCalibrationString)) { - if (distanceCalibrationString == "none") { - out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_NONE; - } else if (distanceCalibrationString == "scaled") { - out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_SCALED; - } else if (distanceCalibrationString != "default") { - ALOGW("Invalid value for touch.distance.calibration: '%s'", - distanceCalibrationString.string()); - } - } - - out.haveDistanceScale = in.tryGetProperty(String8("touch.distance.scale"), - out.distanceScale); - - out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_DEFAULT; - String8 coverageCalibrationString; - if (in.tryGetProperty(String8("touch.coverage.calibration"), coverageCalibrationString)) { - if (coverageCalibrationString == "none") { - out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_NONE; - } else if (coverageCalibrationString == "box") { - out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_BOX; - } else if (coverageCalibrationString != "default") { - ALOGW("Invalid value for touch.coverage.calibration: '%s'", - coverageCalibrationString.string()); - } - } -} - -void TouchInputMapper::resolveCalibration() { - // Size - if (mRawPointerAxes.touchMajor.valid || mRawPointerAxes.toolMajor.valid) { - if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_DEFAULT) { - mCalibration.sizeCalibration = Calibration::SIZE_CALIBRATION_GEOMETRIC; - } - } else { - mCalibration.sizeCalibration = Calibration::SIZE_CALIBRATION_NONE; - } - - // Pressure - if (mRawPointerAxes.pressure.valid) { - if (mCalibration.pressureCalibration == Calibration::PRESSURE_CALIBRATION_DEFAULT) { - mCalibration.pressureCalibration = Calibration::PRESSURE_CALIBRATION_PHYSICAL; - } - } else { - mCalibration.pressureCalibration = Calibration::PRESSURE_CALIBRATION_NONE; - } - - // Orientation - if (mRawPointerAxes.orientation.valid) { - if (mCalibration.orientationCalibration == Calibration::ORIENTATION_CALIBRATION_DEFAULT) { - mCalibration.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED; - } - } else { - mCalibration.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE; - } - - // Distance - if (mRawPointerAxes.distance.valid) { - if (mCalibration.distanceCalibration == Calibration::DISTANCE_CALIBRATION_DEFAULT) { - mCalibration.distanceCalibration = Calibration::DISTANCE_CALIBRATION_SCALED; - } - } else { - mCalibration.distanceCalibration = Calibration::DISTANCE_CALIBRATION_NONE; - } - - // Coverage - if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_DEFAULT) { - mCalibration.coverageCalibration = Calibration::COVERAGE_CALIBRATION_NONE; - } -} - -void TouchInputMapper::dumpCalibration(String8& dump) { - dump.append(INDENT3 "Calibration:\n"); - - // Size - switch (mCalibration.sizeCalibration) { - case Calibration::SIZE_CALIBRATION_NONE: - dump.append(INDENT4 "touch.size.calibration: none\n"); - break; - case Calibration::SIZE_CALIBRATION_GEOMETRIC: - dump.append(INDENT4 "touch.size.calibration: geometric\n"); - break; - case Calibration::SIZE_CALIBRATION_DIAMETER: - dump.append(INDENT4 "touch.size.calibration: diameter\n"); - break; - case Calibration::SIZE_CALIBRATION_BOX: - dump.append(INDENT4 "touch.size.calibration: box\n"); - break; - case Calibration::SIZE_CALIBRATION_AREA: - dump.append(INDENT4 "touch.size.calibration: area\n"); - break; - default: - ALOG_ASSERT(false); - } - - if (mCalibration.haveSizeScale) { - dump.appendFormat(INDENT4 "touch.size.scale: %0.3f\n", - mCalibration.sizeScale); - } - - if (mCalibration.haveSizeBias) { - dump.appendFormat(INDENT4 "touch.size.bias: %0.3f\n", - mCalibration.sizeBias); - } - - if (mCalibration.haveSizeIsSummed) { - dump.appendFormat(INDENT4 "touch.size.isSummed: %s\n", - toString(mCalibration.sizeIsSummed)); - } - - // Pressure - switch (mCalibration.pressureCalibration) { - case Calibration::PRESSURE_CALIBRATION_NONE: - dump.append(INDENT4 "touch.pressure.calibration: none\n"); - break; - case Calibration::PRESSURE_CALIBRATION_PHYSICAL: - dump.append(INDENT4 "touch.pressure.calibration: physical\n"); - break; - case Calibration::PRESSURE_CALIBRATION_AMPLITUDE: - dump.append(INDENT4 "touch.pressure.calibration: amplitude\n"); - break; - default: - ALOG_ASSERT(false); - } - - if (mCalibration.havePressureScale) { - dump.appendFormat(INDENT4 "touch.pressure.scale: %0.3f\n", - mCalibration.pressureScale); - } - - // Orientation - switch (mCalibration.orientationCalibration) { - case Calibration::ORIENTATION_CALIBRATION_NONE: - dump.append(INDENT4 "touch.orientation.calibration: none\n"); - break; - case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED: - dump.append(INDENT4 "touch.orientation.calibration: interpolated\n"); - break; - case Calibration::ORIENTATION_CALIBRATION_VECTOR: - dump.append(INDENT4 "touch.orientation.calibration: vector\n"); - break; - default: - ALOG_ASSERT(false); - } - - // Distance - switch (mCalibration.distanceCalibration) { - case Calibration::DISTANCE_CALIBRATION_NONE: - dump.append(INDENT4 "touch.distance.calibration: none\n"); - break; - case Calibration::DISTANCE_CALIBRATION_SCALED: - dump.append(INDENT4 "touch.distance.calibration: scaled\n"); - break; - default: - ALOG_ASSERT(false); - } - - if (mCalibration.haveDistanceScale) { - dump.appendFormat(INDENT4 "touch.distance.scale: %0.3f\n", - mCalibration.distanceScale); - } - - switch (mCalibration.coverageCalibration) { - case Calibration::COVERAGE_CALIBRATION_NONE: - dump.append(INDENT4 "touch.coverage.calibration: none\n"); - break; - case Calibration::COVERAGE_CALIBRATION_BOX: - dump.append(INDENT4 "touch.coverage.calibration: box\n"); - break; - default: - ALOG_ASSERT(false); - } -} - -void TouchInputMapper::reset(nsecs_t when) { - mCursorButtonAccumulator.reset(getDevice()); - mCursorScrollAccumulator.reset(getDevice()); - mTouchButtonAccumulator.reset(getDevice()); - - mPointerVelocityControl.reset(); - mWheelXVelocityControl.reset(); - mWheelYVelocityControl.reset(); - - mCurrentRawPointerData.clear(); - mLastRawPointerData.clear(); - mCurrentCookedPointerData.clear(); - mLastCookedPointerData.clear(); - mCurrentButtonState = 0; - mLastButtonState = 0; - mCurrentRawVScroll = 0; - mCurrentRawHScroll = 0; - mCurrentFingerIdBits.clear(); - mLastFingerIdBits.clear(); - mCurrentStylusIdBits.clear(); - mLastStylusIdBits.clear(); - mCurrentMouseIdBits.clear(); - mLastMouseIdBits.clear(); - mPointerUsage = POINTER_USAGE_NONE; - mSentHoverEnter = false; - mDownTime = 0; - - mCurrentVirtualKey.down = false; - - mPointerGesture.reset(); - mPointerSimple.reset(); - - if (mPointerController != NULL) { - mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); - mPointerController->clearSpots(); - } - - InputMapper::reset(when); -} - -void TouchInputMapper::process(const RawEvent* rawEvent) { - mCursorButtonAccumulator.process(rawEvent); - mCursorScrollAccumulator.process(rawEvent); - mTouchButtonAccumulator.process(rawEvent); - - if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) { - sync(rawEvent->when); - } -} - -void TouchInputMapper::sync(nsecs_t when) { - // Sync button state. - mCurrentButtonState = mTouchButtonAccumulator.getButtonState() - | mCursorButtonAccumulator.getButtonState(); - - // Sync scroll state. - mCurrentRawVScroll = mCursorScrollAccumulator.getRelativeVWheel(); - mCurrentRawHScroll = mCursorScrollAccumulator.getRelativeHWheel(); - mCursorScrollAccumulator.finishSync(); - - // Sync touch state. - bool havePointerIds = true; - mCurrentRawPointerData.clear(); - syncTouch(when, &havePointerIds); - -#if DEBUG_RAW_EVENTS - if (!havePointerIds) { - ALOGD("syncTouch: pointerCount %d -> %d, no pointer ids", - mLastRawPointerData.pointerCount, - mCurrentRawPointerData.pointerCount); - } else { - ALOGD("syncTouch: pointerCount %d -> %d, touching ids 0x%08x -> 0x%08x, " - "hovering ids 0x%08x -> 0x%08x", - mLastRawPointerData.pointerCount, - mCurrentRawPointerData.pointerCount, - mLastRawPointerData.touchingIdBits.value, - mCurrentRawPointerData.touchingIdBits.value, - mLastRawPointerData.hoveringIdBits.value, - mCurrentRawPointerData.hoveringIdBits.value); - } -#endif - - // Reset state that we will compute below. - mCurrentFingerIdBits.clear(); - mCurrentStylusIdBits.clear(); - mCurrentMouseIdBits.clear(); - mCurrentCookedPointerData.clear(); - - if (mDeviceMode == DEVICE_MODE_DISABLED) { - // Drop all input if the device is disabled. - mCurrentRawPointerData.clear(); - mCurrentButtonState = 0; - } else { - // Preprocess pointer data. - if (!havePointerIds) { - assignPointerIds(); - } - - // Handle policy on initial down or hover events. - uint32_t policyFlags = 0; - bool initialDown = mLastRawPointerData.pointerCount == 0 - && mCurrentRawPointerData.pointerCount != 0; - bool buttonsPressed = mCurrentButtonState & ~mLastButtonState; - if (initialDown || buttonsPressed) { - // If this is a touch screen, hide the pointer on an initial down. - if (mDeviceMode == DEVICE_MODE_DIRECT) { - getContext()->fadePointer(); - } - - // Initial downs on external touch devices should wake the device. - // We don't do this for internal touch screens to prevent them from waking - // up in your pocket. - // TODO: Use the input device configuration to control this behavior more finely. - if (getDevice()->isExternal()) { - policyFlags |= POLICY_FLAG_WAKE_DROPPED; - } - } - - // Synthesize key down from raw buttons if needed. - synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_DOWN, when, getDeviceId(), mSource, - policyFlags, mLastButtonState, mCurrentButtonState); - - // Consume raw off-screen touches before cooking pointer data. - // If touches are consumed, subsequent code will not receive any pointer data. - if (consumeRawTouches(when, policyFlags)) { - mCurrentRawPointerData.clear(); - } - - // Cook pointer data. This call populates the mCurrentCookedPointerData structure - // with cooked pointer data that has the same ids and indices as the raw data. - // The following code can use either the raw or cooked data, as needed. - cookPointerData(); - - // Dispatch the touches either directly or by translation through a pointer on screen. - if (mDeviceMode == DEVICE_MODE_POINTER) { - for (BitSet32 idBits(mCurrentRawPointerData.touchingIdBits); !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); - if (pointer.toolType == AMOTION_EVENT_TOOL_TYPE_STYLUS - || pointer.toolType == AMOTION_EVENT_TOOL_TYPE_ERASER) { - mCurrentStylusIdBits.markBit(id); - } else if (pointer.toolType == AMOTION_EVENT_TOOL_TYPE_FINGER - || pointer.toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN) { - mCurrentFingerIdBits.markBit(id); - } else if (pointer.toolType == AMOTION_EVENT_TOOL_TYPE_MOUSE) { - mCurrentMouseIdBits.markBit(id); - } - } - for (BitSet32 idBits(mCurrentRawPointerData.hoveringIdBits); !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); - if (pointer.toolType == AMOTION_EVENT_TOOL_TYPE_STYLUS - || pointer.toolType == AMOTION_EVENT_TOOL_TYPE_ERASER) { - mCurrentStylusIdBits.markBit(id); - } - } - - // Stylus takes precedence over all tools, then mouse, then finger. - PointerUsage pointerUsage = mPointerUsage; - if (!mCurrentStylusIdBits.isEmpty()) { - mCurrentMouseIdBits.clear(); - mCurrentFingerIdBits.clear(); - pointerUsage = POINTER_USAGE_STYLUS; - } else if (!mCurrentMouseIdBits.isEmpty()) { - mCurrentFingerIdBits.clear(); - pointerUsage = POINTER_USAGE_MOUSE; - } else if (!mCurrentFingerIdBits.isEmpty() || isPointerDown(mCurrentButtonState)) { - pointerUsage = POINTER_USAGE_GESTURES; - } - - dispatchPointerUsage(when, policyFlags, pointerUsage); - } else { - if (mDeviceMode == DEVICE_MODE_DIRECT - && mConfig.showTouches && mPointerController != NULL) { - mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_SPOT); - mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); - - mPointerController->setButtonState(mCurrentButtonState); - mPointerController->setSpots(mCurrentCookedPointerData.pointerCoords, - mCurrentCookedPointerData.idToIndex, - mCurrentCookedPointerData.touchingIdBits); - } - - dispatchHoverExit(when, policyFlags); - dispatchTouches(when, policyFlags); - dispatchHoverEnterAndMove(when, policyFlags); - } - - // Synthesize key up from raw buttons if needed. - synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_UP, when, getDeviceId(), mSource, - policyFlags, mLastButtonState, mCurrentButtonState); - } - - // Copy current touch to last touch in preparation for the next cycle. - mLastRawPointerData.copyFrom(mCurrentRawPointerData); - mLastCookedPointerData.copyFrom(mCurrentCookedPointerData); - mLastButtonState = mCurrentButtonState; - mLastFingerIdBits = mCurrentFingerIdBits; - mLastStylusIdBits = mCurrentStylusIdBits; - mLastMouseIdBits = mCurrentMouseIdBits; - - // Clear some transient state. - mCurrentRawVScroll = 0; - mCurrentRawHScroll = 0; -} - -void TouchInputMapper::timeoutExpired(nsecs_t when) { - if (mDeviceMode == DEVICE_MODE_POINTER) { - if (mPointerUsage == POINTER_USAGE_GESTURES) { - dispatchPointerGestures(when, 0 /*policyFlags*/, true /*isTimeout*/); - } - } -} - -bool TouchInputMapper::consumeRawTouches(nsecs_t when, uint32_t policyFlags) { - // Check for release of a virtual key. - if (mCurrentVirtualKey.down) { - if (mCurrentRawPointerData.touchingIdBits.isEmpty()) { - // Pointer went up while virtual key was down. - mCurrentVirtualKey.down = false; - if (!mCurrentVirtualKey.ignored) { -#if DEBUG_VIRTUAL_KEYS - ALOGD("VirtualKeys: Generating key up: keyCode=%d, scanCode=%d", - mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode); -#endif - dispatchVirtualKey(when, policyFlags, - AKEY_EVENT_ACTION_UP, - AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY); - } - return true; - } - - if (mCurrentRawPointerData.touchingIdBits.count() == 1) { - uint32_t id = mCurrentRawPointerData.touchingIdBits.firstMarkedBit(); - const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); - const VirtualKey* virtualKey = findVirtualKeyHit(pointer.x, pointer.y); - if (virtualKey && virtualKey->keyCode == mCurrentVirtualKey.keyCode) { - // Pointer is still within the space of the virtual key. - return true; - } - } - - // Pointer left virtual key area or another pointer also went down. - // Send key cancellation but do not consume the touch yet. - // This is useful when the user swipes through from the virtual key area - // into the main display surface. - mCurrentVirtualKey.down = false; - if (!mCurrentVirtualKey.ignored) { -#if DEBUG_VIRTUAL_KEYS - ALOGD("VirtualKeys: Canceling key: keyCode=%d, scanCode=%d", - mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode); -#endif - dispatchVirtualKey(when, policyFlags, - AKEY_EVENT_ACTION_UP, - AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY - | AKEY_EVENT_FLAG_CANCELED); - } - } - - if (mLastRawPointerData.touchingIdBits.isEmpty() - && !mCurrentRawPointerData.touchingIdBits.isEmpty()) { - // Pointer just went down. Check for virtual key press or off-screen touches. - uint32_t id = mCurrentRawPointerData.touchingIdBits.firstMarkedBit(); - const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); - if (!isPointInsideSurface(pointer.x, pointer.y)) { - // If exactly one pointer went down, check for virtual key hit. - // Otherwise we will drop the entire stroke. - if (mCurrentRawPointerData.touchingIdBits.count() == 1) { - const VirtualKey* virtualKey = findVirtualKeyHit(pointer.x, pointer.y); - if (virtualKey) { - mCurrentVirtualKey.down = true; - mCurrentVirtualKey.downTime = when; - mCurrentVirtualKey.keyCode = virtualKey->keyCode; - mCurrentVirtualKey.scanCode = virtualKey->scanCode; - mCurrentVirtualKey.ignored = mContext->shouldDropVirtualKey( - when, getDevice(), virtualKey->keyCode, virtualKey->scanCode); - - if (!mCurrentVirtualKey.ignored) { -#if DEBUG_VIRTUAL_KEYS - ALOGD("VirtualKeys: Generating key down: keyCode=%d, scanCode=%d", - mCurrentVirtualKey.keyCode, - mCurrentVirtualKey.scanCode); -#endif - dispatchVirtualKey(when, policyFlags, - AKEY_EVENT_ACTION_DOWN, - AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY); - } - } - } - return true; - } - } - - // Disable all virtual key touches that happen within a short time interval of the - // most recent touch within the screen area. The idea is to filter out stray - // virtual key presses when interacting with the touch screen. - // - // Problems we're trying to solve: - // - // 1. While scrolling a list or dragging the window shade, the user swipes down into a - // virtual key area that is implemented by a separate touch panel and accidentally - // triggers a virtual key. - // - // 2. While typing in the on screen keyboard, the user taps slightly outside the screen - // area and accidentally triggers a virtual key. This often happens when virtual keys - // are layed out below the screen near to where the on screen keyboard's space bar - // is displayed. - if (mConfig.virtualKeyQuietTime > 0 && !mCurrentRawPointerData.touchingIdBits.isEmpty()) { - mContext->disableVirtualKeysUntil(when + mConfig.virtualKeyQuietTime); - } - return false; -} - -void TouchInputMapper::dispatchVirtualKey(nsecs_t when, uint32_t policyFlags, - int32_t keyEventAction, int32_t keyEventFlags) { - int32_t keyCode = mCurrentVirtualKey.keyCode; - int32_t scanCode = mCurrentVirtualKey.scanCode; - nsecs_t downTime = mCurrentVirtualKey.downTime; - int32_t metaState = mContext->getGlobalMetaState(); - policyFlags |= POLICY_FLAG_VIRTUAL; - - NotifyKeyArgs args(when, getDeviceId(), AINPUT_SOURCE_KEYBOARD, policyFlags, - keyEventAction, keyEventFlags, keyCode, scanCode, metaState, downTime); - getListener()->notifyKey(&args); -} - -void TouchInputMapper::dispatchTouches(nsecs_t when, uint32_t policyFlags) { - BitSet32 currentIdBits = mCurrentCookedPointerData.touchingIdBits; - BitSet32 lastIdBits = mLastCookedPointerData.touchingIdBits; - int32_t metaState = getContext()->getGlobalMetaState(); - int32_t buttonState = mCurrentButtonState; - - if (currentIdBits == lastIdBits) { - if (!currentIdBits.isEmpty()) { - // No pointer id changes so this is a move event. - // The listener takes care of batching moves so we don't have to deal with that here. - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_MOVE, 0, metaState, buttonState, - AMOTION_EVENT_EDGE_FLAG_NONE, - mCurrentCookedPointerData.pointerProperties, - mCurrentCookedPointerData.pointerCoords, - mCurrentCookedPointerData.idToIndex, - currentIdBits, -1, - mOrientedXPrecision, mOrientedYPrecision, mDownTime); - } - } else { - // There may be pointers going up and pointers going down and pointers moving - // all at the same time. - BitSet32 upIdBits(lastIdBits.value & ~currentIdBits.value); - BitSet32 downIdBits(currentIdBits.value & ~lastIdBits.value); - BitSet32 moveIdBits(lastIdBits.value & currentIdBits.value); - BitSet32 dispatchedIdBits(lastIdBits.value); - - // Update last coordinates of pointers that have moved so that we observe the new - // pointer positions at the same time as other pointers that have just gone up. - bool moveNeeded = updateMovedPointers( - mCurrentCookedPointerData.pointerProperties, - mCurrentCookedPointerData.pointerCoords, - mCurrentCookedPointerData.idToIndex, - mLastCookedPointerData.pointerProperties, - mLastCookedPointerData.pointerCoords, - mLastCookedPointerData.idToIndex, - moveIdBits); - if (buttonState != mLastButtonState) { - moveNeeded = true; - } - - // Dispatch pointer up events. - while (!upIdBits.isEmpty()) { - uint32_t upId = upIdBits.clearFirstMarkedBit(); - - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_POINTER_UP, 0, metaState, buttonState, 0, - mLastCookedPointerData.pointerProperties, - mLastCookedPointerData.pointerCoords, - mLastCookedPointerData.idToIndex, - dispatchedIdBits, upId, - mOrientedXPrecision, mOrientedYPrecision, mDownTime); - dispatchedIdBits.clearBit(upId); - } - - // Dispatch move events if any of the remaining pointers moved from their old locations. - // Although applications receive new locations as part of individual pointer up - // events, they do not generally handle them except when presented in a move event. - if (moveNeeded) { - ALOG_ASSERT(moveIdBits.value == dispatchedIdBits.value); - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_MOVE, 0, metaState, buttonState, 0, - mCurrentCookedPointerData.pointerProperties, - mCurrentCookedPointerData.pointerCoords, - mCurrentCookedPointerData.idToIndex, - dispatchedIdBits, -1, - mOrientedXPrecision, mOrientedYPrecision, mDownTime); - } - - // Dispatch pointer down events using the new pointer locations. - while (!downIdBits.isEmpty()) { - uint32_t downId = downIdBits.clearFirstMarkedBit(); - dispatchedIdBits.markBit(downId); - - if (dispatchedIdBits.count() == 1) { - // First pointer is going down. Set down time. - mDownTime = when; - } - - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_POINTER_DOWN, 0, metaState, buttonState, 0, - mCurrentCookedPointerData.pointerProperties, - mCurrentCookedPointerData.pointerCoords, - mCurrentCookedPointerData.idToIndex, - dispatchedIdBits, downId, - mOrientedXPrecision, mOrientedYPrecision, mDownTime); - } - } -} - -void TouchInputMapper::dispatchHoverExit(nsecs_t when, uint32_t policyFlags) { - if (mSentHoverEnter && - (mCurrentCookedPointerData.hoveringIdBits.isEmpty() - || !mCurrentCookedPointerData.touchingIdBits.isEmpty())) { - int32_t metaState = getContext()->getGlobalMetaState(); - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_HOVER_EXIT, 0, metaState, mLastButtonState, 0, - mLastCookedPointerData.pointerProperties, - mLastCookedPointerData.pointerCoords, - mLastCookedPointerData.idToIndex, - mLastCookedPointerData.hoveringIdBits, -1, - mOrientedXPrecision, mOrientedYPrecision, mDownTime); - mSentHoverEnter = false; - } -} - -void TouchInputMapper::dispatchHoverEnterAndMove(nsecs_t when, uint32_t policyFlags) { - if (mCurrentCookedPointerData.touchingIdBits.isEmpty() - && !mCurrentCookedPointerData.hoveringIdBits.isEmpty()) { - int32_t metaState = getContext()->getGlobalMetaState(); - if (!mSentHoverEnter) { - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_HOVER_ENTER, 0, metaState, mCurrentButtonState, 0, - mCurrentCookedPointerData.pointerProperties, - mCurrentCookedPointerData.pointerCoords, - mCurrentCookedPointerData.idToIndex, - mCurrentCookedPointerData.hoveringIdBits, -1, - mOrientedXPrecision, mOrientedYPrecision, mDownTime); - mSentHoverEnter = true; - } - - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_HOVER_MOVE, 0, metaState, mCurrentButtonState, 0, - mCurrentCookedPointerData.pointerProperties, - mCurrentCookedPointerData.pointerCoords, - mCurrentCookedPointerData.idToIndex, - mCurrentCookedPointerData.hoveringIdBits, -1, - mOrientedXPrecision, mOrientedYPrecision, mDownTime); - } -} - -void TouchInputMapper::cookPointerData() { - uint32_t currentPointerCount = mCurrentRawPointerData.pointerCount; - - mCurrentCookedPointerData.clear(); - mCurrentCookedPointerData.pointerCount = currentPointerCount; - mCurrentCookedPointerData.hoveringIdBits = mCurrentRawPointerData.hoveringIdBits; - mCurrentCookedPointerData.touchingIdBits = mCurrentRawPointerData.touchingIdBits; - - // Walk through the the active pointers and map device coordinates onto - // surface coordinates and adjust for display orientation. - for (uint32_t i = 0; i < currentPointerCount; i++) { - const RawPointerData::Pointer& in = mCurrentRawPointerData.pointers[i]; - - // Size - float touchMajor, touchMinor, toolMajor, toolMinor, size; - switch (mCalibration.sizeCalibration) { - case Calibration::SIZE_CALIBRATION_GEOMETRIC: - case Calibration::SIZE_CALIBRATION_DIAMETER: - case Calibration::SIZE_CALIBRATION_BOX: - case Calibration::SIZE_CALIBRATION_AREA: - if (mRawPointerAxes.touchMajor.valid && mRawPointerAxes.toolMajor.valid) { - touchMajor = in.touchMajor; - touchMinor = mRawPointerAxes.touchMinor.valid ? in.touchMinor : in.touchMajor; - toolMajor = in.toolMajor; - toolMinor = mRawPointerAxes.toolMinor.valid ? in.toolMinor : in.toolMajor; - size = mRawPointerAxes.touchMinor.valid - ? avg(in.touchMajor, in.touchMinor) : in.touchMajor; - } else if (mRawPointerAxes.touchMajor.valid) { - toolMajor = touchMajor = in.touchMajor; - toolMinor = touchMinor = mRawPointerAxes.touchMinor.valid - ? in.touchMinor : in.touchMajor; - size = mRawPointerAxes.touchMinor.valid - ? avg(in.touchMajor, in.touchMinor) : in.touchMajor; - } else if (mRawPointerAxes.toolMajor.valid) { - touchMajor = toolMajor = in.toolMajor; - touchMinor = toolMinor = mRawPointerAxes.toolMinor.valid - ? in.toolMinor : in.toolMajor; - size = mRawPointerAxes.toolMinor.valid - ? avg(in.toolMajor, in.toolMinor) : in.toolMajor; - } else { - ALOG_ASSERT(false, "No touch or tool axes. " - "Size calibration should have been resolved to NONE."); - touchMajor = 0; - touchMinor = 0; - toolMajor = 0; - toolMinor = 0; - size = 0; - } - - if (mCalibration.haveSizeIsSummed && mCalibration.sizeIsSummed) { - uint32_t touchingCount = mCurrentRawPointerData.touchingIdBits.count(); - if (touchingCount > 1) { - touchMajor /= touchingCount; - touchMinor /= touchingCount; - toolMajor /= touchingCount; - toolMinor /= touchingCount; - size /= touchingCount; - } - } - - if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_GEOMETRIC) { - touchMajor *= mGeometricScale; - touchMinor *= mGeometricScale; - toolMajor *= mGeometricScale; - toolMinor *= mGeometricScale; - } else if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_AREA) { - touchMajor = touchMajor > 0 ? sqrtf(touchMajor) : 0; - touchMinor = touchMajor; - toolMajor = toolMajor > 0 ? sqrtf(toolMajor) : 0; - toolMinor = toolMajor; - } else if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_DIAMETER) { - touchMinor = touchMajor; - toolMinor = toolMajor; - } - - mCalibration.applySizeScaleAndBias(&touchMajor); - mCalibration.applySizeScaleAndBias(&touchMinor); - mCalibration.applySizeScaleAndBias(&toolMajor); - mCalibration.applySizeScaleAndBias(&toolMinor); - size *= mSizeScale; - break; - default: - touchMajor = 0; - touchMinor = 0; - toolMajor = 0; - toolMinor = 0; - size = 0; - break; - } - - // Pressure - float pressure; - switch (mCalibration.pressureCalibration) { - case Calibration::PRESSURE_CALIBRATION_PHYSICAL: - case Calibration::PRESSURE_CALIBRATION_AMPLITUDE: - pressure = in.pressure * mPressureScale; - break; - default: - pressure = in.isHovering ? 0 : 1; - break; - } - - // Tilt and Orientation - float tilt; - float orientation; - if (mHaveTilt) { - float tiltXAngle = (in.tiltX - mTiltXCenter) * mTiltXScale; - float tiltYAngle = (in.tiltY - mTiltYCenter) * mTiltYScale; - orientation = atan2f(-sinf(tiltXAngle), sinf(tiltYAngle)); - tilt = acosf(cosf(tiltXAngle) * cosf(tiltYAngle)); - } else { - tilt = 0; - - switch (mCalibration.orientationCalibration) { - case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED: - orientation = in.orientation * mOrientationScale; - break; - case Calibration::ORIENTATION_CALIBRATION_VECTOR: { - int32_t c1 = signExtendNybble((in.orientation & 0xf0) >> 4); - int32_t c2 = signExtendNybble(in.orientation & 0x0f); - if (c1 != 0 || c2 != 0) { - orientation = atan2f(c1, c2) * 0.5f; - float confidence = hypotf(c1, c2); - float scale = 1.0f + confidence / 16.0f; - touchMajor *= scale; - touchMinor /= scale; - toolMajor *= scale; - toolMinor /= scale; - } else { - orientation = 0; - } - break; - } - default: - orientation = 0; - } - } - - // Distance - float distance; - switch (mCalibration.distanceCalibration) { - case Calibration::DISTANCE_CALIBRATION_SCALED: - distance = in.distance * mDistanceScale; - break; - default: - distance = 0; - } - - // Coverage - int32_t rawLeft, rawTop, rawRight, rawBottom; - switch (mCalibration.coverageCalibration) { - case Calibration::COVERAGE_CALIBRATION_BOX: - rawLeft = (in.toolMinor & 0xffff0000) >> 16; - rawRight = in.toolMinor & 0x0000ffff; - rawBottom = in.toolMajor & 0x0000ffff; - rawTop = (in.toolMajor & 0xffff0000) >> 16; - break; - default: - rawLeft = rawTop = rawRight = rawBottom = 0; - break; - } - - // X, Y, and the bounding box for coverage information - // Adjust coords for surface orientation. - float x, y, left, top, right, bottom; - switch (mSurfaceOrientation) { - case DISPLAY_ORIENTATION_90: - x = float(in.y - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; - y = float(mRawPointerAxes.x.maxValue - in.x) * mXScale + mXTranslate; - left = float(rawTop - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; - right = float(rawBottom- mRawPointerAxes.y.minValue) * mYScale + mYTranslate; - bottom = float(mRawPointerAxes.x.maxValue - rawLeft) * mXScale + mXTranslate; - top = float(mRawPointerAxes.x.maxValue - rawRight) * mXScale + mXTranslate; - orientation -= M_PI_2; - if (orientation < - M_PI_2) { - orientation += M_PI; - } - break; - case DISPLAY_ORIENTATION_180: - x = float(mRawPointerAxes.x.maxValue - in.x) * mXScale + mXTranslate; - y = float(mRawPointerAxes.y.maxValue - in.y) * mYScale + mYTranslate; - left = float(mRawPointerAxes.x.maxValue - rawRight) * mXScale + mXTranslate; - right = float(mRawPointerAxes.x.maxValue - rawLeft) * mXScale + mXTranslate; - bottom = float(mRawPointerAxes.y.maxValue - rawTop) * mYScale + mYTranslate; - top = float(mRawPointerAxes.y.maxValue - rawBottom) * mYScale + mYTranslate; - break; - case DISPLAY_ORIENTATION_270: - x = float(mRawPointerAxes.y.maxValue - in.y) * mYScale + mYTranslate; - y = float(in.x - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; - left = float(mRawPointerAxes.y.maxValue - rawBottom) * mYScale + mYTranslate; - right = float(mRawPointerAxes.y.maxValue - rawTop) * mYScale + mYTranslate; - bottom = float(rawRight - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; - top = float(rawLeft - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; - orientation += M_PI_2; - if (orientation > M_PI_2) { - orientation -= M_PI; - } - break; - default: - x = float(in.x - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; - y = float(in.y - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; - left = float(rawLeft - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; - right = float(rawRight - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; - bottom = float(rawBottom - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; - top = float(rawTop - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; - break; - } - - // Write output coords. - PointerCoords& out = mCurrentCookedPointerData.pointerCoords[i]; - out.clear(); - out.setAxisValue(AMOTION_EVENT_AXIS_X, x); - out.setAxisValue(AMOTION_EVENT_AXIS_Y, y); - out.setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, pressure); - out.setAxisValue(AMOTION_EVENT_AXIS_SIZE, size); - out.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, touchMajor); - out.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, touchMinor); - out.setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, orientation); - out.setAxisValue(AMOTION_EVENT_AXIS_TILT, tilt); - out.setAxisValue(AMOTION_EVENT_AXIS_DISTANCE, distance); - if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_BOX) { - out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_1, left); - out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_2, top); - out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_3, right); - out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_4, bottom); - } else { - out.setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, toolMajor); - out.setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, toolMinor); - } - - // Write output properties. - PointerProperties& properties = mCurrentCookedPointerData.pointerProperties[i]; - uint32_t id = in.id; - properties.clear(); - properties.id = id; - properties.toolType = in.toolType; - - // Write id index. - mCurrentCookedPointerData.idToIndex[id] = i; - } -} - -void TouchInputMapper::dispatchPointerUsage(nsecs_t when, uint32_t policyFlags, - PointerUsage pointerUsage) { - if (pointerUsage != mPointerUsage) { - abortPointerUsage(when, policyFlags); - mPointerUsage = pointerUsage; - } - - switch (mPointerUsage) { - case POINTER_USAGE_GESTURES: - dispatchPointerGestures(when, policyFlags, false /*isTimeout*/); - break; - case POINTER_USAGE_STYLUS: - dispatchPointerStylus(when, policyFlags); - break; - case POINTER_USAGE_MOUSE: - dispatchPointerMouse(when, policyFlags); - break; - default: - break; - } -} - -void TouchInputMapper::abortPointerUsage(nsecs_t when, uint32_t policyFlags) { - switch (mPointerUsage) { - case POINTER_USAGE_GESTURES: - abortPointerGestures(when, policyFlags); - break; - case POINTER_USAGE_STYLUS: - abortPointerStylus(when, policyFlags); - break; - case POINTER_USAGE_MOUSE: - abortPointerMouse(when, policyFlags); - break; - default: - break; - } - - mPointerUsage = POINTER_USAGE_NONE; -} - -void TouchInputMapper::dispatchPointerGestures(nsecs_t when, uint32_t policyFlags, - bool isTimeout) { - // Update current gesture coordinates. - bool cancelPreviousGesture, finishPreviousGesture; - bool sendEvents = preparePointerGestures(when, - &cancelPreviousGesture, &finishPreviousGesture, isTimeout); - if (!sendEvents) { - return; - } - if (finishPreviousGesture) { - cancelPreviousGesture = false; - } - - // Update the pointer presentation and spots. - if (mParameters.gestureMode == Parameters::GESTURE_MODE_SPOTS) { - mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_SPOT); - if (finishPreviousGesture || cancelPreviousGesture) { - mPointerController->clearSpots(); - } - mPointerController->setSpots(mPointerGesture.currentGestureCoords, - mPointerGesture.currentGestureIdToIndex, - mPointerGesture.currentGestureIdBits); - } else { - mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER); - } - - // Show or hide the pointer if needed. - switch (mPointerGesture.currentGestureMode) { - case PointerGesture::NEUTRAL: - case PointerGesture::QUIET: - if (mParameters.gestureMode == Parameters::GESTURE_MODE_SPOTS - && (mPointerGesture.lastGestureMode == PointerGesture::SWIPE - || mPointerGesture.lastGestureMode == PointerGesture::FREEFORM)) { - // Remind the user of where the pointer is after finishing a gesture with spots. - mPointerController->unfade(PointerControllerInterface::TRANSITION_GRADUAL); - } - break; - case PointerGesture::TAP: - case PointerGesture::TAP_DRAG: - case PointerGesture::BUTTON_CLICK_OR_DRAG: - case PointerGesture::HOVER: - case PointerGesture::PRESS: - // Unfade the pointer when the current gesture manipulates the - // area directly under the pointer. - mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE); - break; - case PointerGesture::SWIPE: - case PointerGesture::FREEFORM: - // Fade the pointer when the current gesture manipulates a different - // area and there are spots to guide the user experience. - if (mParameters.gestureMode == Parameters::GESTURE_MODE_SPOTS) { - mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); - } else { - mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE); - } - break; - } - - // Send events! - int32_t metaState = getContext()->getGlobalMetaState(); - int32_t buttonState = mCurrentButtonState; - - // Update last coordinates of pointers that have moved so that we observe the new - // pointer positions at the same time as other pointers that have just gone up. - bool down = mPointerGesture.currentGestureMode == PointerGesture::TAP - || mPointerGesture.currentGestureMode == PointerGesture::TAP_DRAG - || mPointerGesture.currentGestureMode == PointerGesture::BUTTON_CLICK_OR_DRAG - || mPointerGesture.currentGestureMode == PointerGesture::PRESS - || mPointerGesture.currentGestureMode == PointerGesture::SWIPE - || mPointerGesture.currentGestureMode == PointerGesture::FREEFORM; - bool moveNeeded = false; - if (down && !cancelPreviousGesture && !finishPreviousGesture - && !mPointerGesture.lastGestureIdBits.isEmpty() - && !mPointerGesture.currentGestureIdBits.isEmpty()) { - BitSet32 movedGestureIdBits(mPointerGesture.currentGestureIdBits.value - & mPointerGesture.lastGestureIdBits.value); - moveNeeded = updateMovedPointers(mPointerGesture.currentGestureProperties, - mPointerGesture.currentGestureCoords, mPointerGesture.currentGestureIdToIndex, - mPointerGesture.lastGestureProperties, - mPointerGesture.lastGestureCoords, mPointerGesture.lastGestureIdToIndex, - movedGestureIdBits); - if (buttonState != mLastButtonState) { - moveNeeded = true; - } - } - - // Send motion events for all pointers that went up or were canceled. - BitSet32 dispatchedGestureIdBits(mPointerGesture.lastGestureIdBits); - if (!dispatchedGestureIdBits.isEmpty()) { - if (cancelPreviousGesture) { - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_CANCEL, 0, metaState, buttonState, - AMOTION_EVENT_EDGE_FLAG_NONE, - mPointerGesture.lastGestureProperties, - mPointerGesture.lastGestureCoords, mPointerGesture.lastGestureIdToIndex, - dispatchedGestureIdBits, -1, - 0, 0, mPointerGesture.downTime); - - dispatchedGestureIdBits.clear(); - } else { - BitSet32 upGestureIdBits; - if (finishPreviousGesture) { - upGestureIdBits = dispatchedGestureIdBits; - } else { - upGestureIdBits.value = dispatchedGestureIdBits.value - & ~mPointerGesture.currentGestureIdBits.value; - } - while (!upGestureIdBits.isEmpty()) { - uint32_t id = upGestureIdBits.clearFirstMarkedBit(); - - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_POINTER_UP, 0, - metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, - mPointerGesture.lastGestureProperties, - mPointerGesture.lastGestureCoords, mPointerGesture.lastGestureIdToIndex, - dispatchedGestureIdBits, id, - 0, 0, mPointerGesture.downTime); - - dispatchedGestureIdBits.clearBit(id); - } - } - } - - // Send motion events for all pointers that moved. - if (moveNeeded) { - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_MOVE, 0, metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, - mPointerGesture.currentGestureProperties, - mPointerGesture.currentGestureCoords, mPointerGesture.currentGestureIdToIndex, - dispatchedGestureIdBits, -1, - 0, 0, mPointerGesture.downTime); - } - - // Send motion events for all pointers that went down. - if (down) { - BitSet32 downGestureIdBits(mPointerGesture.currentGestureIdBits.value - & ~dispatchedGestureIdBits.value); - while (!downGestureIdBits.isEmpty()) { - uint32_t id = downGestureIdBits.clearFirstMarkedBit(); - dispatchedGestureIdBits.markBit(id); - - if (dispatchedGestureIdBits.count() == 1) { - mPointerGesture.downTime = when; - } - - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_POINTER_DOWN, 0, metaState, buttonState, 0, - mPointerGesture.currentGestureProperties, - mPointerGesture.currentGestureCoords, mPointerGesture.currentGestureIdToIndex, - dispatchedGestureIdBits, id, - 0, 0, mPointerGesture.downTime); - } - } - - // Send motion events for hover. - if (mPointerGesture.currentGestureMode == PointerGesture::HOVER) { - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_HOVER_MOVE, 0, - metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, - mPointerGesture.currentGestureProperties, - mPointerGesture.currentGestureCoords, mPointerGesture.currentGestureIdToIndex, - mPointerGesture.currentGestureIdBits, -1, - 0, 0, mPointerGesture.downTime); - } else if (dispatchedGestureIdBits.isEmpty() - && !mPointerGesture.lastGestureIdBits.isEmpty()) { - // Synthesize a hover move event after all pointers go up to indicate that - // the pointer is hovering again even if the user is not currently touching - // the touch pad. This ensures that a view will receive a fresh hover enter - // event after a tap. - float x, y; - mPointerController->getPosition(&x, &y); - - PointerProperties pointerProperties; - pointerProperties.clear(); - pointerProperties.id = 0; - pointerProperties.toolType = AMOTION_EVENT_TOOL_TYPE_FINGER; - - PointerCoords pointerCoords; - pointerCoords.clear(); - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x); - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y); - - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_HOVER_MOVE, 0, - metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, - mViewport.displayId, 1, &pointerProperties, &pointerCoords, - 0, 0, mPointerGesture.downTime); - getListener()->notifyMotion(&args); - } - - // Update state. - mPointerGesture.lastGestureMode = mPointerGesture.currentGestureMode; - if (!down) { - mPointerGesture.lastGestureIdBits.clear(); - } else { - mPointerGesture.lastGestureIdBits = mPointerGesture.currentGestureIdBits; - for (BitSet32 idBits(mPointerGesture.currentGestureIdBits); !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - uint32_t index = mPointerGesture.currentGestureIdToIndex[id]; - mPointerGesture.lastGestureProperties[index].copyFrom( - mPointerGesture.currentGestureProperties[index]); - mPointerGesture.lastGestureCoords[index].copyFrom( - mPointerGesture.currentGestureCoords[index]); - mPointerGesture.lastGestureIdToIndex[id] = index; - } - } -} - -void TouchInputMapper::abortPointerGestures(nsecs_t when, uint32_t policyFlags) { - // Cancel previously dispatches pointers. - if (!mPointerGesture.lastGestureIdBits.isEmpty()) { - int32_t metaState = getContext()->getGlobalMetaState(); - int32_t buttonState = mCurrentButtonState; - dispatchMotion(when, policyFlags, mSource, - AMOTION_EVENT_ACTION_CANCEL, 0, metaState, buttonState, - AMOTION_EVENT_EDGE_FLAG_NONE, - mPointerGesture.lastGestureProperties, - mPointerGesture.lastGestureCoords, mPointerGesture.lastGestureIdToIndex, - mPointerGesture.lastGestureIdBits, -1, - 0, 0, mPointerGesture.downTime); - } - - // Reset the current pointer gesture. - mPointerGesture.reset(); - mPointerVelocityControl.reset(); - - // Remove any current spots. - if (mPointerController != NULL) { - mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); - mPointerController->clearSpots(); - } -} - -bool TouchInputMapper::preparePointerGestures(nsecs_t when, - bool* outCancelPreviousGesture, bool* outFinishPreviousGesture, bool isTimeout) { - *outCancelPreviousGesture = false; - *outFinishPreviousGesture = false; - - // Handle TAP timeout. - if (isTimeout) { -#if DEBUG_GESTURES - ALOGD("Gestures: Processing timeout"); -#endif - - if (mPointerGesture.lastGestureMode == PointerGesture::TAP) { - if (when <= mPointerGesture.tapUpTime + mConfig.pointerGestureTapDragInterval) { - // The tap/drag timeout has not yet expired. - getContext()->requestTimeoutAtTime(mPointerGesture.tapUpTime - + mConfig.pointerGestureTapDragInterval); - } else { - // The tap is finished. -#if DEBUG_GESTURES - ALOGD("Gestures: TAP finished"); -#endif - *outFinishPreviousGesture = true; - - mPointerGesture.activeGestureId = -1; - mPointerGesture.currentGestureMode = PointerGesture::NEUTRAL; - mPointerGesture.currentGestureIdBits.clear(); - - mPointerVelocityControl.reset(); - return true; - } - } - - // We did not handle this timeout. - return false; - } - - const uint32_t currentFingerCount = mCurrentFingerIdBits.count(); - const uint32_t lastFingerCount = mLastFingerIdBits.count(); - - // Update the velocity tracker. - { - VelocityTracker::Position positions[MAX_POINTERS]; - uint32_t count = 0; - for (BitSet32 idBits(mCurrentFingerIdBits); !idBits.isEmpty(); count++) { - uint32_t id = idBits.clearFirstMarkedBit(); - const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); - positions[count].x = pointer.x * mPointerXMovementScale; - positions[count].y = pointer.y * mPointerYMovementScale; - } - mPointerGesture.velocityTracker.addMovement(when, - mCurrentFingerIdBits, positions); - } - - // Pick a new active touch id if needed. - // Choose an arbitrary pointer that just went down, if there is one. - // Otherwise choose an arbitrary remaining pointer. - // This guarantees we always have an active touch id when there is at least one pointer. - // We keep the same active touch id for as long as possible. - int32_t lastActiveTouchId = mPointerGesture.activeTouchId; - int32_t activeTouchId = lastActiveTouchId; - if (activeTouchId < 0) { - if (!mCurrentFingerIdBits.isEmpty()) { - activeTouchId = mPointerGesture.activeTouchId = - mCurrentFingerIdBits.firstMarkedBit(); - mPointerGesture.firstTouchTime = when; - } - } else if (!mCurrentFingerIdBits.hasBit(activeTouchId)) { - if (!mCurrentFingerIdBits.isEmpty()) { - activeTouchId = mPointerGesture.activeTouchId = - mCurrentFingerIdBits.firstMarkedBit(); - } else { - activeTouchId = mPointerGesture.activeTouchId = -1; - } - } - - // Determine whether we are in quiet time. - bool isQuietTime = false; - if (activeTouchId < 0) { - mPointerGesture.resetQuietTime(); - } else { - isQuietTime = when < mPointerGesture.quietTime + mConfig.pointerGestureQuietInterval; - if (!isQuietTime) { - if ((mPointerGesture.lastGestureMode == PointerGesture::PRESS - || mPointerGesture.lastGestureMode == PointerGesture::SWIPE - || mPointerGesture.lastGestureMode == PointerGesture::FREEFORM) - && currentFingerCount < 2) { - // Enter quiet time when exiting swipe or freeform state. - // This is to prevent accidentally entering the hover state and flinging the - // pointer when finishing a swipe and there is still one pointer left onscreen. - isQuietTime = true; - } else if (mPointerGesture.lastGestureMode == PointerGesture::BUTTON_CLICK_OR_DRAG - && currentFingerCount >= 2 - && !isPointerDown(mCurrentButtonState)) { - // Enter quiet time when releasing the button and there are still two or more - // fingers down. This may indicate that one finger was used to press the button - // but it has not gone up yet. - isQuietTime = true; - } - if (isQuietTime) { - mPointerGesture.quietTime = when; - } - } - } - - // Switch states based on button and pointer state. - if (isQuietTime) { - // Case 1: Quiet time. (QUIET) -#if DEBUG_GESTURES - ALOGD("Gestures: QUIET for next %0.3fms", (mPointerGesture.quietTime - + mConfig.pointerGestureQuietInterval - when) * 0.000001f); -#endif - if (mPointerGesture.lastGestureMode != PointerGesture::QUIET) { - *outFinishPreviousGesture = true; - } - - mPointerGesture.activeGestureId = -1; - mPointerGesture.currentGestureMode = PointerGesture::QUIET; - mPointerGesture.currentGestureIdBits.clear(); - - mPointerVelocityControl.reset(); - } else if (isPointerDown(mCurrentButtonState)) { - // Case 2: Button is pressed. (BUTTON_CLICK_OR_DRAG) - // The pointer follows the active touch point. - // Emit DOWN, MOVE, UP events at the pointer location. - // - // Only the active touch matters; other fingers are ignored. This policy helps - // to handle the case where the user places a second finger on the touch pad - // to apply the necessary force to depress an integrated button below the surface. - // We don't want the second finger to be delivered to applications. - // - // For this to work well, we need to make sure to track the pointer that is really - // active. If the user first puts one finger down to click then adds another - // finger to drag then the active pointer should switch to the finger that is - // being dragged. -#if DEBUG_GESTURES - ALOGD("Gestures: BUTTON_CLICK_OR_DRAG activeTouchId=%d, " - "currentFingerCount=%d", activeTouchId, currentFingerCount); -#endif - // Reset state when just starting. - if (mPointerGesture.lastGestureMode != PointerGesture::BUTTON_CLICK_OR_DRAG) { - *outFinishPreviousGesture = true; - mPointerGesture.activeGestureId = 0; - } - - // Switch pointers if needed. - // Find the fastest pointer and follow it. - if (activeTouchId >= 0 && currentFingerCount > 1) { - int32_t bestId = -1; - float bestSpeed = mConfig.pointerGestureDragMinSwitchSpeed; - for (BitSet32 idBits(mCurrentFingerIdBits); !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - float vx, vy; - if (mPointerGesture.velocityTracker.getVelocity(id, &vx, &vy)) { - float speed = hypotf(vx, vy); - if (speed > bestSpeed) { - bestId = id; - bestSpeed = speed; - } - } - } - if (bestId >= 0 && bestId != activeTouchId) { - mPointerGesture.activeTouchId = activeTouchId = bestId; -#if DEBUG_GESTURES - ALOGD("Gestures: BUTTON_CLICK_OR_DRAG switched pointers, " - "bestId=%d, bestSpeed=%0.3f", bestId, bestSpeed); -#endif - } - } - - if (activeTouchId >= 0 && mLastFingerIdBits.hasBit(activeTouchId)) { - const RawPointerData::Pointer& currentPointer = - mCurrentRawPointerData.pointerForId(activeTouchId); - const RawPointerData::Pointer& lastPointer = - mLastRawPointerData.pointerForId(activeTouchId); - float deltaX = (currentPointer.x - lastPointer.x) * mPointerXMovementScale; - float deltaY = (currentPointer.y - lastPointer.y) * mPointerYMovementScale; - - rotateDelta(mSurfaceOrientation, &deltaX, &deltaY); - mPointerVelocityControl.move(when, &deltaX, &deltaY); - - // Move the pointer using a relative motion. - // When using spots, the click will occur at the position of the anchor - // spot and all other spots will move there. - mPointerController->move(deltaX, deltaY); - } else { - mPointerVelocityControl.reset(); - } - - float x, y; - mPointerController->getPosition(&x, &y); - - mPointerGesture.currentGestureMode = PointerGesture::BUTTON_CLICK_OR_DRAG; - mPointerGesture.currentGestureIdBits.clear(); - mPointerGesture.currentGestureIdBits.markBit(mPointerGesture.activeGestureId); - mPointerGesture.currentGestureIdToIndex[mPointerGesture.activeGestureId] = 0; - mPointerGesture.currentGestureProperties[0].clear(); - mPointerGesture.currentGestureProperties[0].id = mPointerGesture.activeGestureId; - mPointerGesture.currentGestureProperties[0].toolType = AMOTION_EVENT_TOOL_TYPE_FINGER; - mPointerGesture.currentGestureCoords[0].clear(); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, x); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, y); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 1.0f); - } else if (currentFingerCount == 0) { - // Case 3. No fingers down and button is not pressed. (NEUTRAL) - if (mPointerGesture.lastGestureMode != PointerGesture::NEUTRAL) { - *outFinishPreviousGesture = true; - } - - // Watch for taps coming out of HOVER or TAP_DRAG mode. - // Checking for taps after TAP_DRAG allows us to detect double-taps. - bool tapped = false; - if ((mPointerGesture.lastGestureMode == PointerGesture::HOVER - || mPointerGesture.lastGestureMode == PointerGesture::TAP_DRAG) - && lastFingerCount == 1) { - if (when <= mPointerGesture.tapDownTime + mConfig.pointerGestureTapInterval) { - float x, y; - mPointerController->getPosition(&x, &y); - if (fabs(x - mPointerGesture.tapX) <= mConfig.pointerGestureTapSlop - && fabs(y - mPointerGesture.tapY) <= mConfig.pointerGestureTapSlop) { -#if DEBUG_GESTURES - ALOGD("Gestures: TAP"); -#endif - - mPointerGesture.tapUpTime = when; - getContext()->requestTimeoutAtTime(when - + mConfig.pointerGestureTapDragInterval); - - mPointerGesture.activeGestureId = 0; - mPointerGesture.currentGestureMode = PointerGesture::TAP; - mPointerGesture.currentGestureIdBits.clear(); - mPointerGesture.currentGestureIdBits.markBit( - mPointerGesture.activeGestureId); - mPointerGesture.currentGestureIdToIndex[ - mPointerGesture.activeGestureId] = 0; - mPointerGesture.currentGestureProperties[0].clear(); - mPointerGesture.currentGestureProperties[0].id = - mPointerGesture.activeGestureId; - mPointerGesture.currentGestureProperties[0].toolType = - AMOTION_EVENT_TOOL_TYPE_FINGER; - mPointerGesture.currentGestureCoords[0].clear(); - mPointerGesture.currentGestureCoords[0].setAxisValue( - AMOTION_EVENT_AXIS_X, mPointerGesture.tapX); - mPointerGesture.currentGestureCoords[0].setAxisValue( - AMOTION_EVENT_AXIS_Y, mPointerGesture.tapY); - mPointerGesture.currentGestureCoords[0].setAxisValue( - AMOTION_EVENT_AXIS_PRESSURE, 1.0f); - - tapped = true; - } else { -#if DEBUG_GESTURES - ALOGD("Gestures: Not a TAP, deltaX=%f, deltaY=%f", - x - mPointerGesture.tapX, - y - mPointerGesture.tapY); -#endif - } - } else { -#if DEBUG_GESTURES - ALOGD("Gestures: Not a TAP, %0.3fms since down", - (when - mPointerGesture.tapDownTime) * 0.000001f); -#endif - } - } - - mPointerVelocityControl.reset(); - - if (!tapped) { -#if DEBUG_GESTURES - ALOGD("Gestures: NEUTRAL"); -#endif - mPointerGesture.activeGestureId = -1; - mPointerGesture.currentGestureMode = PointerGesture::NEUTRAL; - mPointerGesture.currentGestureIdBits.clear(); - } - } else if (currentFingerCount == 1) { - // Case 4. Exactly one finger down, button is not pressed. (HOVER or TAP_DRAG) - // The pointer follows the active touch point. - // When in HOVER, emit HOVER_MOVE events at the pointer location. - // When in TAP_DRAG, emit MOVE events at the pointer location. - ALOG_ASSERT(activeTouchId >= 0); - - mPointerGesture.currentGestureMode = PointerGesture::HOVER; - if (mPointerGesture.lastGestureMode == PointerGesture::TAP) { - if (when <= mPointerGesture.tapUpTime + mConfig.pointerGestureTapDragInterval) { - float x, y; - mPointerController->getPosition(&x, &y); - if (fabs(x - mPointerGesture.tapX) <= mConfig.pointerGestureTapSlop - && fabs(y - mPointerGesture.tapY) <= mConfig.pointerGestureTapSlop) { - mPointerGesture.currentGestureMode = PointerGesture::TAP_DRAG; - } else { -#if DEBUG_GESTURES - ALOGD("Gestures: Not a TAP_DRAG, deltaX=%f, deltaY=%f", - x - mPointerGesture.tapX, - y - mPointerGesture.tapY); -#endif - } - } else { -#if DEBUG_GESTURES - ALOGD("Gestures: Not a TAP_DRAG, %0.3fms time since up", - (when - mPointerGesture.tapUpTime) * 0.000001f); -#endif - } - } else if (mPointerGesture.lastGestureMode == PointerGesture::TAP_DRAG) { - mPointerGesture.currentGestureMode = PointerGesture::TAP_DRAG; - } - - if (mLastFingerIdBits.hasBit(activeTouchId)) { - const RawPointerData::Pointer& currentPointer = - mCurrentRawPointerData.pointerForId(activeTouchId); - const RawPointerData::Pointer& lastPointer = - mLastRawPointerData.pointerForId(activeTouchId); - float deltaX = (currentPointer.x - lastPointer.x) - * mPointerXMovementScale; - float deltaY = (currentPointer.y - lastPointer.y) - * mPointerYMovementScale; - - rotateDelta(mSurfaceOrientation, &deltaX, &deltaY); - mPointerVelocityControl.move(when, &deltaX, &deltaY); - - // Move the pointer using a relative motion. - // When using spots, the hover or drag will occur at the position of the anchor spot. - mPointerController->move(deltaX, deltaY); - } else { - mPointerVelocityControl.reset(); - } - - bool down; - if (mPointerGesture.currentGestureMode == PointerGesture::TAP_DRAG) { -#if DEBUG_GESTURES - ALOGD("Gestures: TAP_DRAG"); -#endif - down = true; - } else { -#if DEBUG_GESTURES - ALOGD("Gestures: HOVER"); -#endif - if (mPointerGesture.lastGestureMode != PointerGesture::HOVER) { - *outFinishPreviousGesture = true; - } - mPointerGesture.activeGestureId = 0; - down = false; - } - - float x, y; - mPointerController->getPosition(&x, &y); - - mPointerGesture.currentGestureIdBits.clear(); - mPointerGesture.currentGestureIdBits.markBit(mPointerGesture.activeGestureId); - mPointerGesture.currentGestureIdToIndex[mPointerGesture.activeGestureId] = 0; - mPointerGesture.currentGestureProperties[0].clear(); - mPointerGesture.currentGestureProperties[0].id = mPointerGesture.activeGestureId; - mPointerGesture.currentGestureProperties[0].toolType = - AMOTION_EVENT_TOOL_TYPE_FINGER; - mPointerGesture.currentGestureCoords[0].clear(); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, x); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, y); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, - down ? 1.0f : 0.0f); - - if (lastFingerCount == 0 && currentFingerCount != 0) { - mPointerGesture.resetTap(); - mPointerGesture.tapDownTime = when; - mPointerGesture.tapX = x; - mPointerGesture.tapY = y; - } - } else { - // Case 5. At least two fingers down, button is not pressed. (PRESS, SWIPE or FREEFORM) - // We need to provide feedback for each finger that goes down so we cannot wait - // for the fingers to move before deciding what to do. - // - // The ambiguous case is deciding what to do when there are two fingers down but they - // have not moved enough to determine whether they are part of a drag or part of a - // freeform gesture, or just a press or long-press at the pointer location. - // - // When there are two fingers we start with the PRESS hypothesis and we generate a - // down at the pointer location. - // - // When the two fingers move enough or when additional fingers are added, we make - // a decision to transition into SWIPE or FREEFORM mode accordingly. - ALOG_ASSERT(activeTouchId >= 0); - - bool settled = when >= mPointerGesture.firstTouchTime - + mConfig.pointerGestureMultitouchSettleInterval; - if (mPointerGesture.lastGestureMode != PointerGesture::PRESS - && mPointerGesture.lastGestureMode != PointerGesture::SWIPE - && mPointerGesture.lastGestureMode != PointerGesture::FREEFORM) { - *outFinishPreviousGesture = true; - } else if (!settled && currentFingerCount > lastFingerCount) { - // Additional pointers have gone down but not yet settled. - // Reset the gesture. -#if DEBUG_GESTURES - ALOGD("Gestures: Resetting gesture since additional pointers went down for MULTITOUCH, " - "settle time remaining %0.3fms", (mPointerGesture.firstTouchTime - + mConfig.pointerGestureMultitouchSettleInterval - when) - * 0.000001f); -#endif - *outCancelPreviousGesture = true; - } else { - // Continue previous gesture. - mPointerGesture.currentGestureMode = mPointerGesture.lastGestureMode; - } - - if (*outFinishPreviousGesture || *outCancelPreviousGesture) { - mPointerGesture.currentGestureMode = PointerGesture::PRESS; - mPointerGesture.activeGestureId = 0; - mPointerGesture.referenceIdBits.clear(); - mPointerVelocityControl.reset(); - - // Use the centroid and pointer location as the reference points for the gesture. -#if DEBUG_GESTURES - ALOGD("Gestures: Using centroid as reference for MULTITOUCH, " - "settle time remaining %0.3fms", (mPointerGesture.firstTouchTime - + mConfig.pointerGestureMultitouchSettleInterval - when) - * 0.000001f); -#endif - mCurrentRawPointerData.getCentroidOfTouchingPointers( - &mPointerGesture.referenceTouchX, - &mPointerGesture.referenceTouchY); - mPointerController->getPosition(&mPointerGesture.referenceGestureX, - &mPointerGesture.referenceGestureY); - } - - // Clear the reference deltas for fingers not yet included in the reference calculation. - for (BitSet32 idBits(mCurrentFingerIdBits.value - & ~mPointerGesture.referenceIdBits.value); !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - mPointerGesture.referenceDeltas[id].dx = 0; - mPointerGesture.referenceDeltas[id].dy = 0; - } - mPointerGesture.referenceIdBits = mCurrentFingerIdBits; - - // Add delta for all fingers and calculate a common movement delta. - float commonDeltaX = 0, commonDeltaY = 0; - BitSet32 commonIdBits(mLastFingerIdBits.value - & mCurrentFingerIdBits.value); - for (BitSet32 idBits(commonIdBits); !idBits.isEmpty(); ) { - bool first = (idBits == commonIdBits); - uint32_t id = idBits.clearFirstMarkedBit(); - const RawPointerData::Pointer& cpd = mCurrentRawPointerData.pointerForId(id); - const RawPointerData::Pointer& lpd = mLastRawPointerData.pointerForId(id); - PointerGesture::Delta& delta = mPointerGesture.referenceDeltas[id]; - delta.dx += cpd.x - lpd.x; - delta.dy += cpd.y - lpd.y; - - if (first) { - commonDeltaX = delta.dx; - commonDeltaY = delta.dy; - } else { - commonDeltaX = calculateCommonVector(commonDeltaX, delta.dx); - commonDeltaY = calculateCommonVector(commonDeltaY, delta.dy); - } - } - - // Consider transitions from PRESS to SWIPE or MULTITOUCH. - if (mPointerGesture.currentGestureMode == PointerGesture::PRESS) { - float dist[MAX_POINTER_ID + 1]; - int32_t distOverThreshold = 0; - for (BitSet32 idBits(mPointerGesture.referenceIdBits); !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - PointerGesture::Delta& delta = mPointerGesture.referenceDeltas[id]; - dist[id] = hypotf(delta.dx * mPointerXZoomScale, - delta.dy * mPointerYZoomScale); - if (dist[id] > mConfig.pointerGestureMultitouchMinDistance) { - distOverThreshold += 1; - } - } - - // Only transition when at least two pointers have moved further than - // the minimum distance threshold. - if (distOverThreshold >= 2) { - if (currentFingerCount > 2) { - // There are more than two pointers, switch to FREEFORM. -#if DEBUG_GESTURES - ALOGD("Gestures: PRESS transitioned to FREEFORM, number of pointers %d > 2", - currentFingerCount); -#endif - *outCancelPreviousGesture = true; - mPointerGesture.currentGestureMode = PointerGesture::FREEFORM; - } else { - // There are exactly two pointers. - BitSet32 idBits(mCurrentFingerIdBits); - uint32_t id1 = idBits.clearFirstMarkedBit(); - uint32_t id2 = idBits.firstMarkedBit(); - const RawPointerData::Pointer& p1 = mCurrentRawPointerData.pointerForId(id1); - const RawPointerData::Pointer& p2 = mCurrentRawPointerData.pointerForId(id2); - float mutualDistance = distance(p1.x, p1.y, p2.x, p2.y); - if (mutualDistance > mPointerGestureMaxSwipeWidth) { - // There are two pointers but they are too far apart for a SWIPE, - // switch to FREEFORM. -#if DEBUG_GESTURES - ALOGD("Gestures: PRESS transitioned to FREEFORM, distance %0.3f > %0.3f", - mutualDistance, mPointerGestureMaxSwipeWidth); -#endif - *outCancelPreviousGesture = true; - mPointerGesture.currentGestureMode = PointerGesture::FREEFORM; - } else { - // There are two pointers. Wait for both pointers to start moving - // before deciding whether this is a SWIPE or FREEFORM gesture. - float dist1 = dist[id1]; - float dist2 = dist[id2]; - if (dist1 >= mConfig.pointerGestureMultitouchMinDistance - && dist2 >= mConfig.pointerGestureMultitouchMinDistance) { - // Calculate the dot product of the displacement vectors. - // When the vectors are oriented in approximately the same direction, - // the angle betweeen them is near zero and the cosine of the angle - // approches 1.0. Recall that dot(v1, v2) = cos(angle) * mag(v1) * mag(v2). - PointerGesture::Delta& delta1 = mPointerGesture.referenceDeltas[id1]; - PointerGesture::Delta& delta2 = mPointerGesture.referenceDeltas[id2]; - float dx1 = delta1.dx * mPointerXZoomScale; - float dy1 = delta1.dy * mPointerYZoomScale; - float dx2 = delta2.dx * mPointerXZoomScale; - float dy2 = delta2.dy * mPointerYZoomScale; - float dot = dx1 * dx2 + dy1 * dy2; - float cosine = dot / (dist1 * dist2); // denominator always > 0 - if (cosine >= mConfig.pointerGestureSwipeTransitionAngleCosine) { - // Pointers are moving in the same direction. Switch to SWIPE. -#if DEBUG_GESTURES - ALOGD("Gestures: PRESS transitioned to SWIPE, " - "dist1 %0.3f >= %0.3f, dist2 %0.3f >= %0.3f, " - "cosine %0.3f >= %0.3f", - dist1, mConfig.pointerGestureMultitouchMinDistance, - dist2, mConfig.pointerGestureMultitouchMinDistance, - cosine, mConfig.pointerGestureSwipeTransitionAngleCosine); -#endif - mPointerGesture.currentGestureMode = PointerGesture::SWIPE; - } else { - // Pointers are moving in different directions. Switch to FREEFORM. -#if DEBUG_GESTURES - ALOGD("Gestures: PRESS transitioned to FREEFORM, " - "dist1 %0.3f >= %0.3f, dist2 %0.3f >= %0.3f, " - "cosine %0.3f < %0.3f", - dist1, mConfig.pointerGestureMultitouchMinDistance, - dist2, mConfig.pointerGestureMultitouchMinDistance, - cosine, mConfig.pointerGestureSwipeTransitionAngleCosine); -#endif - *outCancelPreviousGesture = true; - mPointerGesture.currentGestureMode = PointerGesture::FREEFORM; - } - } - } - } - } - } else if (mPointerGesture.currentGestureMode == PointerGesture::SWIPE) { - // Switch from SWIPE to FREEFORM if additional pointers go down. - // Cancel previous gesture. - if (currentFingerCount > 2) { -#if DEBUG_GESTURES - ALOGD("Gestures: SWIPE transitioned to FREEFORM, number of pointers %d > 2", - currentFingerCount); -#endif - *outCancelPreviousGesture = true; - mPointerGesture.currentGestureMode = PointerGesture::FREEFORM; - } - } - - // Move the reference points based on the overall group motion of the fingers - // except in PRESS mode while waiting for a transition to occur. - if (mPointerGesture.currentGestureMode != PointerGesture::PRESS - && (commonDeltaX || commonDeltaY)) { - for (BitSet32 idBits(mPointerGesture.referenceIdBits); !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - PointerGesture::Delta& delta = mPointerGesture.referenceDeltas[id]; - delta.dx = 0; - delta.dy = 0; - } - - mPointerGesture.referenceTouchX += commonDeltaX; - mPointerGesture.referenceTouchY += commonDeltaY; - - commonDeltaX *= mPointerXMovementScale; - commonDeltaY *= mPointerYMovementScale; - - rotateDelta(mSurfaceOrientation, &commonDeltaX, &commonDeltaY); - mPointerVelocityControl.move(when, &commonDeltaX, &commonDeltaY); - - mPointerGesture.referenceGestureX += commonDeltaX; - mPointerGesture.referenceGestureY += commonDeltaY; - } - - // Report gestures. - if (mPointerGesture.currentGestureMode == PointerGesture::PRESS - || mPointerGesture.currentGestureMode == PointerGesture::SWIPE) { - // PRESS or SWIPE mode. -#if DEBUG_GESTURES - ALOGD("Gestures: PRESS or SWIPE activeTouchId=%d," - "activeGestureId=%d, currentTouchPointerCount=%d", - activeTouchId, mPointerGesture.activeGestureId, currentFingerCount); -#endif - ALOG_ASSERT(mPointerGesture.activeGestureId >= 0); - - mPointerGesture.currentGestureIdBits.clear(); - mPointerGesture.currentGestureIdBits.markBit(mPointerGesture.activeGestureId); - mPointerGesture.currentGestureIdToIndex[mPointerGesture.activeGestureId] = 0; - mPointerGesture.currentGestureProperties[0].clear(); - mPointerGesture.currentGestureProperties[0].id = mPointerGesture.activeGestureId; - mPointerGesture.currentGestureProperties[0].toolType = - AMOTION_EVENT_TOOL_TYPE_FINGER; - mPointerGesture.currentGestureCoords[0].clear(); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, - mPointerGesture.referenceGestureX); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, - mPointerGesture.referenceGestureY); - mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 1.0f); - } else if (mPointerGesture.currentGestureMode == PointerGesture::FREEFORM) { - // FREEFORM mode. -#if DEBUG_GESTURES - ALOGD("Gestures: FREEFORM activeTouchId=%d," - "activeGestureId=%d, currentTouchPointerCount=%d", - activeTouchId, mPointerGesture.activeGestureId, currentFingerCount); -#endif - ALOG_ASSERT(mPointerGesture.activeGestureId >= 0); - - mPointerGesture.currentGestureIdBits.clear(); - - BitSet32 mappedTouchIdBits; - BitSet32 usedGestureIdBits; - if (mPointerGesture.lastGestureMode != PointerGesture::FREEFORM) { - // Initially, assign the active gesture id to the active touch point - // if there is one. No other touch id bits are mapped yet. - if (!*outCancelPreviousGesture) { - mappedTouchIdBits.markBit(activeTouchId); - usedGestureIdBits.markBit(mPointerGesture.activeGestureId); - mPointerGesture.freeformTouchToGestureIdMap[activeTouchId] = - mPointerGesture.activeGestureId; - } else { - mPointerGesture.activeGestureId = -1; - } - } else { - // Otherwise, assume we mapped all touches from the previous frame. - // Reuse all mappings that are still applicable. - mappedTouchIdBits.value = mLastFingerIdBits.value - & mCurrentFingerIdBits.value; - usedGestureIdBits = mPointerGesture.lastGestureIdBits; - - // Check whether we need to choose a new active gesture id because the - // current went went up. - for (BitSet32 upTouchIdBits(mLastFingerIdBits.value - & ~mCurrentFingerIdBits.value); - !upTouchIdBits.isEmpty(); ) { - uint32_t upTouchId = upTouchIdBits.clearFirstMarkedBit(); - uint32_t upGestureId = mPointerGesture.freeformTouchToGestureIdMap[upTouchId]; - if (upGestureId == uint32_t(mPointerGesture.activeGestureId)) { - mPointerGesture.activeGestureId = -1; - break; - } - } - } - -#if DEBUG_GESTURES - ALOGD("Gestures: FREEFORM follow up " - "mappedTouchIdBits=0x%08x, usedGestureIdBits=0x%08x, " - "activeGestureId=%d", - mappedTouchIdBits.value, usedGestureIdBits.value, - mPointerGesture.activeGestureId); -#endif - - BitSet32 idBits(mCurrentFingerIdBits); - for (uint32_t i = 0; i < currentFingerCount; i++) { - uint32_t touchId = idBits.clearFirstMarkedBit(); - uint32_t gestureId; - if (!mappedTouchIdBits.hasBit(touchId)) { - gestureId = usedGestureIdBits.markFirstUnmarkedBit(); - mPointerGesture.freeformTouchToGestureIdMap[touchId] = gestureId; -#if DEBUG_GESTURES - ALOGD("Gestures: FREEFORM " - "new mapping for touch id %d -> gesture id %d", - touchId, gestureId); -#endif - } else { - gestureId = mPointerGesture.freeformTouchToGestureIdMap[touchId]; -#if DEBUG_GESTURES - ALOGD("Gestures: FREEFORM " - "existing mapping for touch id %d -> gesture id %d", - touchId, gestureId); -#endif - } - mPointerGesture.currentGestureIdBits.markBit(gestureId); - mPointerGesture.currentGestureIdToIndex[gestureId] = i; - - const RawPointerData::Pointer& pointer = - mCurrentRawPointerData.pointerForId(touchId); - float deltaX = (pointer.x - mPointerGesture.referenceTouchX) - * mPointerXZoomScale; - float deltaY = (pointer.y - mPointerGesture.referenceTouchY) - * mPointerYZoomScale; - rotateDelta(mSurfaceOrientation, &deltaX, &deltaY); - - mPointerGesture.currentGestureProperties[i].clear(); - mPointerGesture.currentGestureProperties[i].id = gestureId; - mPointerGesture.currentGestureProperties[i].toolType = - AMOTION_EVENT_TOOL_TYPE_FINGER; - mPointerGesture.currentGestureCoords[i].clear(); - mPointerGesture.currentGestureCoords[i].setAxisValue( - AMOTION_EVENT_AXIS_X, mPointerGesture.referenceGestureX + deltaX); - mPointerGesture.currentGestureCoords[i].setAxisValue( - AMOTION_EVENT_AXIS_Y, mPointerGesture.referenceGestureY + deltaY); - mPointerGesture.currentGestureCoords[i].setAxisValue( - AMOTION_EVENT_AXIS_PRESSURE, 1.0f); - } - - if (mPointerGesture.activeGestureId < 0) { - mPointerGesture.activeGestureId = - mPointerGesture.currentGestureIdBits.firstMarkedBit(); -#if DEBUG_GESTURES - ALOGD("Gestures: FREEFORM new " - "activeGestureId=%d", mPointerGesture.activeGestureId); -#endif - } - } - } - - mPointerController->setButtonState(mCurrentButtonState); - -#if DEBUG_GESTURES - ALOGD("Gestures: finishPreviousGesture=%s, cancelPreviousGesture=%s, " - "currentGestureMode=%d, currentGestureIdBits=0x%08x, " - "lastGestureMode=%d, lastGestureIdBits=0x%08x", - toString(*outFinishPreviousGesture), toString(*outCancelPreviousGesture), - mPointerGesture.currentGestureMode, mPointerGesture.currentGestureIdBits.value, - mPointerGesture.lastGestureMode, mPointerGesture.lastGestureIdBits.value); - for (BitSet32 idBits = mPointerGesture.currentGestureIdBits; !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - uint32_t index = mPointerGesture.currentGestureIdToIndex[id]; - const PointerProperties& properties = mPointerGesture.currentGestureProperties[index]; - const PointerCoords& coords = mPointerGesture.currentGestureCoords[index]; - ALOGD(" currentGesture[%d]: index=%d, toolType=%d, " - "x=%0.3f, y=%0.3f, pressure=%0.3f", - id, index, properties.toolType, - coords.getAxisValue(AMOTION_EVENT_AXIS_X), - coords.getAxisValue(AMOTION_EVENT_AXIS_Y), - coords.getAxisValue(AMOTION_EVENT_AXIS_PRESSURE)); - } - for (BitSet32 idBits = mPointerGesture.lastGestureIdBits; !idBits.isEmpty(); ) { - uint32_t id = idBits.clearFirstMarkedBit(); - uint32_t index = mPointerGesture.lastGestureIdToIndex[id]; - const PointerProperties& properties = mPointerGesture.lastGestureProperties[index]; - const PointerCoords& coords = mPointerGesture.lastGestureCoords[index]; - ALOGD(" lastGesture[%d]: index=%d, toolType=%d, " - "x=%0.3f, y=%0.3f, pressure=%0.3f", - id, index, properties.toolType, - coords.getAxisValue(AMOTION_EVENT_AXIS_X), - coords.getAxisValue(AMOTION_EVENT_AXIS_Y), - coords.getAxisValue(AMOTION_EVENT_AXIS_PRESSURE)); - } -#endif - return true; -} - -void TouchInputMapper::dispatchPointerStylus(nsecs_t when, uint32_t policyFlags) { - mPointerSimple.currentCoords.clear(); - mPointerSimple.currentProperties.clear(); - - bool down, hovering; - if (!mCurrentStylusIdBits.isEmpty()) { - uint32_t id = mCurrentStylusIdBits.firstMarkedBit(); - uint32_t index = mCurrentCookedPointerData.idToIndex[id]; - float x = mCurrentCookedPointerData.pointerCoords[index].getX(); - float y = mCurrentCookedPointerData.pointerCoords[index].getY(); - mPointerController->setPosition(x, y); - - hovering = mCurrentCookedPointerData.hoveringIdBits.hasBit(id); - down = !hovering; - - mPointerController->getPosition(&x, &y); - mPointerSimple.currentCoords.copyFrom(mCurrentCookedPointerData.pointerCoords[index]); - mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x); - mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y); - mPointerSimple.currentProperties.id = 0; - mPointerSimple.currentProperties.toolType = - mCurrentCookedPointerData.pointerProperties[index].toolType; - } else { - down = false; - hovering = false; - } - - dispatchPointerSimple(when, policyFlags, down, hovering); -} - -void TouchInputMapper::abortPointerStylus(nsecs_t when, uint32_t policyFlags) { - abortPointerSimple(when, policyFlags); -} - -void TouchInputMapper::dispatchPointerMouse(nsecs_t when, uint32_t policyFlags) { - mPointerSimple.currentCoords.clear(); - mPointerSimple.currentProperties.clear(); - - bool down, hovering; - if (!mCurrentMouseIdBits.isEmpty()) { - uint32_t id = mCurrentMouseIdBits.firstMarkedBit(); - uint32_t currentIndex = mCurrentRawPointerData.idToIndex[id]; - if (mLastMouseIdBits.hasBit(id)) { - uint32_t lastIndex = mCurrentRawPointerData.idToIndex[id]; - float deltaX = (mCurrentRawPointerData.pointers[currentIndex].x - - mLastRawPointerData.pointers[lastIndex].x) - * mPointerXMovementScale; - float deltaY = (mCurrentRawPointerData.pointers[currentIndex].y - - mLastRawPointerData.pointers[lastIndex].y) - * mPointerYMovementScale; - - rotateDelta(mSurfaceOrientation, &deltaX, &deltaY); - mPointerVelocityControl.move(when, &deltaX, &deltaY); - - mPointerController->move(deltaX, deltaY); - } else { - mPointerVelocityControl.reset(); - } - - down = isPointerDown(mCurrentButtonState); - hovering = !down; - - float x, y; - mPointerController->getPosition(&x, &y); - mPointerSimple.currentCoords.copyFrom( - mCurrentCookedPointerData.pointerCoords[currentIndex]); - mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x); - mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y); - mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, - hovering ? 0.0f : 1.0f); - mPointerSimple.currentProperties.id = 0; - mPointerSimple.currentProperties.toolType = - mCurrentCookedPointerData.pointerProperties[currentIndex].toolType; - } else { - mPointerVelocityControl.reset(); - - down = false; - hovering = false; - } - - dispatchPointerSimple(when, policyFlags, down, hovering); -} - -void TouchInputMapper::abortPointerMouse(nsecs_t when, uint32_t policyFlags) { - abortPointerSimple(when, policyFlags); - - mPointerVelocityControl.reset(); -} - -void TouchInputMapper::dispatchPointerSimple(nsecs_t when, uint32_t policyFlags, - bool down, bool hovering) { - int32_t metaState = getContext()->getGlobalMetaState(); - - if (mPointerController != NULL) { - if (down || hovering) { - mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER); - mPointerController->clearSpots(); - mPointerController->setButtonState(mCurrentButtonState); - mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE); - } else if (!down && !hovering && (mPointerSimple.down || mPointerSimple.hovering)) { - mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); - } - } - - if (mPointerSimple.down && !down) { - mPointerSimple.down = false; - - // Send up. - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_UP, 0, metaState, mLastButtonState, 0, - mViewport.displayId, - 1, &mPointerSimple.lastProperties, &mPointerSimple.lastCoords, - mOrientedXPrecision, mOrientedYPrecision, - mPointerSimple.downTime); - getListener()->notifyMotion(&args); - } - - if (mPointerSimple.hovering && !hovering) { - mPointerSimple.hovering = false; - - // Send hover exit. - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_HOVER_EXIT, 0, metaState, mLastButtonState, 0, - mViewport.displayId, - 1, &mPointerSimple.lastProperties, &mPointerSimple.lastCoords, - mOrientedXPrecision, mOrientedYPrecision, - mPointerSimple.downTime); - getListener()->notifyMotion(&args); - } - - if (down) { - if (!mPointerSimple.down) { - mPointerSimple.down = true; - mPointerSimple.downTime = when; - - // Send down. - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_DOWN, 0, metaState, mCurrentButtonState, 0, - mViewport.displayId, - 1, &mPointerSimple.currentProperties, &mPointerSimple.currentCoords, - mOrientedXPrecision, mOrientedYPrecision, - mPointerSimple.downTime); - getListener()->notifyMotion(&args); - } - - // Send move. - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_MOVE, 0, metaState, mCurrentButtonState, 0, - mViewport.displayId, - 1, &mPointerSimple.currentProperties, &mPointerSimple.currentCoords, - mOrientedXPrecision, mOrientedYPrecision, - mPointerSimple.downTime); - getListener()->notifyMotion(&args); - } - - if (hovering) { - if (!mPointerSimple.hovering) { - mPointerSimple.hovering = true; - - // Send hover enter. - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_HOVER_ENTER, 0, metaState, mCurrentButtonState, 0, - mViewport.displayId, - 1, &mPointerSimple.currentProperties, &mPointerSimple.currentCoords, - mOrientedXPrecision, mOrientedYPrecision, - mPointerSimple.downTime); - getListener()->notifyMotion(&args); - } - - // Send hover move. - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_HOVER_MOVE, 0, metaState, mCurrentButtonState, 0, - mViewport.displayId, - 1, &mPointerSimple.currentProperties, &mPointerSimple.currentCoords, - mOrientedXPrecision, mOrientedYPrecision, - mPointerSimple.downTime); - getListener()->notifyMotion(&args); - } - - if (mCurrentRawVScroll || mCurrentRawHScroll) { - float vscroll = mCurrentRawVScroll; - float hscroll = mCurrentRawHScroll; - mWheelYVelocityControl.move(when, NULL, &vscroll); - mWheelXVelocityControl.move(when, &hscroll, NULL); - - // Send scroll. - PointerCoords pointerCoords; - pointerCoords.copyFrom(mPointerSimple.currentCoords); - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_VSCROLL, vscroll); - pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_HSCROLL, hscroll); - - NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, - AMOTION_EVENT_ACTION_SCROLL, 0, metaState, mCurrentButtonState, 0, - mViewport.displayId, - 1, &mPointerSimple.currentProperties, &pointerCoords, - mOrientedXPrecision, mOrientedYPrecision, - mPointerSimple.downTime); - getListener()->notifyMotion(&args); - } - - // Save state. - if (down || hovering) { - mPointerSimple.lastCoords.copyFrom(mPointerSimple.currentCoords); - mPointerSimple.lastProperties.copyFrom(mPointerSimple.currentProperties); - } else { - mPointerSimple.reset(); - } -} - -void TouchInputMapper::abortPointerSimple(nsecs_t when, uint32_t policyFlags) { - mPointerSimple.currentCoords.clear(); - mPointerSimple.currentProperties.clear(); - - dispatchPointerSimple(when, policyFlags, false, false); -} - -void TouchInputMapper::dispatchMotion(nsecs_t when, uint32_t policyFlags, uint32_t source, - int32_t action, int32_t flags, int32_t metaState, int32_t buttonState, int32_t edgeFlags, - const PointerProperties* properties, const PointerCoords* coords, - const uint32_t* idToIndex, BitSet32 idBits, - int32_t changedId, float xPrecision, float yPrecision, nsecs_t downTime) { - PointerCoords pointerCoords[MAX_POINTERS]; - PointerProperties pointerProperties[MAX_POINTERS]; - uint32_t pointerCount = 0; - while (!idBits.isEmpty()) { - uint32_t id = idBits.clearFirstMarkedBit(); - uint32_t index = idToIndex[id]; - pointerProperties[pointerCount].copyFrom(properties[index]); - pointerCoords[pointerCount].copyFrom(coords[index]); - - if (changedId >= 0 && id == uint32_t(changedId)) { - action |= pointerCount << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT; - } - - pointerCount += 1; - } - - ALOG_ASSERT(pointerCount != 0); - - if (changedId >= 0 && pointerCount == 1) { - // Replace initial down and final up action. - // We can compare the action without masking off the changed pointer index - // because we know the index is 0. - if (action == AMOTION_EVENT_ACTION_POINTER_DOWN) { - action = AMOTION_EVENT_ACTION_DOWN; - } else if (action == AMOTION_EVENT_ACTION_POINTER_UP) { - action = AMOTION_EVENT_ACTION_UP; - } else { - // Can't happen. - ALOG_ASSERT(false); - } - } - - NotifyMotionArgs args(when, getDeviceId(), source, policyFlags, - action, flags, metaState, buttonState, edgeFlags, - mViewport.displayId, pointerCount, pointerProperties, pointerCoords, - xPrecision, yPrecision, downTime); - getListener()->notifyMotion(&args); -} - -bool TouchInputMapper::updateMovedPointers(const PointerProperties* inProperties, - const PointerCoords* inCoords, const uint32_t* inIdToIndex, - PointerProperties* outProperties, PointerCoords* outCoords, const uint32_t* outIdToIndex, - BitSet32 idBits) const { - bool changed = false; - while (!idBits.isEmpty()) { - uint32_t id = idBits.clearFirstMarkedBit(); - uint32_t inIndex = inIdToIndex[id]; - uint32_t outIndex = outIdToIndex[id]; - - const PointerProperties& curInProperties = inProperties[inIndex]; - const PointerCoords& curInCoords = inCoords[inIndex]; - PointerProperties& curOutProperties = outProperties[outIndex]; - PointerCoords& curOutCoords = outCoords[outIndex]; - - if (curInProperties != curOutProperties) { - curOutProperties.copyFrom(curInProperties); - changed = true; - } - - if (curInCoords != curOutCoords) { - curOutCoords.copyFrom(curInCoords); - changed = true; - } - } - return changed; -} - -void TouchInputMapper::fadePointer() { - if (mPointerController != NULL) { - mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); - } -} - -bool TouchInputMapper::isPointInsideSurface(int32_t x, int32_t y) { - return x >= mRawPointerAxes.x.minValue && x <= mRawPointerAxes.x.maxValue - && y >= mRawPointerAxes.y.minValue && y <= mRawPointerAxes.y.maxValue; -} - -const TouchInputMapper::VirtualKey* TouchInputMapper::findVirtualKeyHit( - int32_t x, int32_t y) { - size_t numVirtualKeys = mVirtualKeys.size(); - for (size_t i = 0; i < numVirtualKeys; i++) { - const VirtualKey& virtualKey = mVirtualKeys[i]; - -#if DEBUG_VIRTUAL_KEYS - ALOGD("VirtualKeys: Hit test (%d, %d): keyCode=%d, scanCode=%d, " - "left=%d, top=%d, right=%d, bottom=%d", - x, y, - virtualKey.keyCode, virtualKey.scanCode, - virtualKey.hitLeft, virtualKey.hitTop, - virtualKey.hitRight, virtualKey.hitBottom); -#endif - - if (virtualKey.isHit(x, y)) { - return & virtualKey; - } - } - - return NULL; -} - -void TouchInputMapper::assignPointerIds() { - uint32_t currentPointerCount = mCurrentRawPointerData.pointerCount; - uint32_t lastPointerCount = mLastRawPointerData.pointerCount; - - mCurrentRawPointerData.clearIdBits(); - - if (currentPointerCount == 0) { - // No pointers to assign. - return; - } - - if (lastPointerCount == 0) { - // All pointers are new. - for (uint32_t i = 0; i < currentPointerCount; i++) { - uint32_t id = i; - mCurrentRawPointerData.pointers[i].id = id; - mCurrentRawPointerData.idToIndex[id] = i; - mCurrentRawPointerData.markIdBit(id, mCurrentRawPointerData.isHovering(i)); - } - return; - } - - if (currentPointerCount == 1 && lastPointerCount == 1 - && mCurrentRawPointerData.pointers[0].toolType - == mLastRawPointerData.pointers[0].toolType) { - // Only one pointer and no change in count so it must have the same id as before. - uint32_t id = mLastRawPointerData.pointers[0].id; - mCurrentRawPointerData.pointers[0].id = id; - mCurrentRawPointerData.idToIndex[id] = 0; - mCurrentRawPointerData.markIdBit(id, mCurrentRawPointerData.isHovering(0)); - return; - } - - // General case. - // We build a heap of squared euclidean distances between current and last pointers - // associated with the current and last pointer indices. Then, we find the best - // match (by distance) for each current pointer. - // The pointers must have the same tool type but it is possible for them to - // transition from hovering to touching or vice-versa while retaining the same id. - PointerDistanceHeapElement heap[MAX_POINTERS * MAX_POINTERS]; - - uint32_t heapSize = 0; - for (uint32_t currentPointerIndex = 0; currentPointerIndex < currentPointerCount; - currentPointerIndex++) { - for (uint32_t lastPointerIndex = 0; lastPointerIndex < lastPointerCount; - lastPointerIndex++) { - const RawPointerData::Pointer& currentPointer = - mCurrentRawPointerData.pointers[currentPointerIndex]; - const RawPointerData::Pointer& lastPointer = - mLastRawPointerData.pointers[lastPointerIndex]; - if (currentPointer.toolType == lastPointer.toolType) { - int64_t deltaX = currentPointer.x - lastPointer.x; - int64_t deltaY = currentPointer.y - lastPointer.y; - - uint64_t distance = uint64_t(deltaX * deltaX + deltaY * deltaY); - - // Insert new element into the heap (sift up). - heap[heapSize].currentPointerIndex = currentPointerIndex; - heap[heapSize].lastPointerIndex = lastPointerIndex; - heap[heapSize].distance = distance; - heapSize += 1; - } - } - } - - // Heapify - for (uint32_t startIndex = heapSize / 2; startIndex != 0; ) { - startIndex -= 1; - for (uint32_t parentIndex = startIndex; ;) { - uint32_t childIndex = parentIndex * 2 + 1; - if (childIndex >= heapSize) { - break; - } - - if (childIndex + 1 < heapSize - && heap[childIndex + 1].distance < heap[childIndex].distance) { - childIndex += 1; - } - - if (heap[parentIndex].distance <= heap[childIndex].distance) { - break; - } - - swap(heap[parentIndex], heap[childIndex]); - parentIndex = childIndex; - } - } - -#if DEBUG_POINTER_ASSIGNMENT - ALOGD("assignPointerIds - initial distance min-heap: size=%d", heapSize); - for (size_t i = 0; i < heapSize; i++) { - ALOGD(" heap[%d]: cur=%d, last=%d, distance=%lld", - i, heap[i].currentPointerIndex, heap[i].lastPointerIndex, - heap[i].distance); - } -#endif - - // Pull matches out by increasing order of distance. - // To avoid reassigning pointers that have already been matched, the loop keeps track - // of which last and current pointers have been matched using the matchedXXXBits variables. - // It also tracks the used pointer id bits. - BitSet32 matchedLastBits(0); - BitSet32 matchedCurrentBits(0); - BitSet32 usedIdBits(0); - bool first = true; - for (uint32_t i = min(currentPointerCount, lastPointerCount); heapSize > 0 && i > 0; i--) { - while (heapSize > 0) { - if (first) { - // The first time through the loop, we just consume the root element of - // the heap (the one with smallest distance). - first = false; - } else { - // Previous iterations consumed the root element of the heap. - // Pop root element off of the heap (sift down). - heap[0] = heap[heapSize]; - for (uint32_t parentIndex = 0; ;) { - uint32_t childIndex = parentIndex * 2 + 1; - if (childIndex >= heapSize) { - break; - } - - if (childIndex + 1 < heapSize - && heap[childIndex + 1].distance < heap[childIndex].distance) { - childIndex += 1; - } - - if (heap[parentIndex].distance <= heap[childIndex].distance) { - break; - } - - swap(heap[parentIndex], heap[childIndex]); - parentIndex = childIndex; - } - -#if DEBUG_POINTER_ASSIGNMENT - ALOGD("assignPointerIds - reduced distance min-heap: size=%d", heapSize); - for (size_t i = 0; i < heapSize; i++) { - ALOGD(" heap[%d]: cur=%d, last=%d, distance=%lld", - i, heap[i].currentPointerIndex, heap[i].lastPointerIndex, - heap[i].distance); - } -#endif - } - - heapSize -= 1; - - uint32_t currentPointerIndex = heap[0].currentPointerIndex; - if (matchedCurrentBits.hasBit(currentPointerIndex)) continue; // already matched - - uint32_t lastPointerIndex = heap[0].lastPointerIndex; - if (matchedLastBits.hasBit(lastPointerIndex)) continue; // already matched - - matchedCurrentBits.markBit(currentPointerIndex); - matchedLastBits.markBit(lastPointerIndex); - - uint32_t id = mLastRawPointerData.pointers[lastPointerIndex].id; - mCurrentRawPointerData.pointers[currentPointerIndex].id = id; - mCurrentRawPointerData.idToIndex[id] = currentPointerIndex; - mCurrentRawPointerData.markIdBit(id, - mCurrentRawPointerData.isHovering(currentPointerIndex)); - usedIdBits.markBit(id); - -#if DEBUG_POINTER_ASSIGNMENT - ALOGD("assignPointerIds - matched: cur=%d, last=%d, id=%d, distance=%lld", - lastPointerIndex, currentPointerIndex, id, heap[0].distance); -#endif - break; - } - } - - // Assign fresh ids to pointers that were not matched in the process. - for (uint32_t i = currentPointerCount - matchedCurrentBits.count(); i != 0; i--) { - uint32_t currentPointerIndex = matchedCurrentBits.markFirstUnmarkedBit(); - uint32_t id = usedIdBits.markFirstUnmarkedBit(); - - mCurrentRawPointerData.pointers[currentPointerIndex].id = id; - mCurrentRawPointerData.idToIndex[id] = currentPointerIndex; - mCurrentRawPointerData.markIdBit(id, - mCurrentRawPointerData.isHovering(currentPointerIndex)); - -#if DEBUG_POINTER_ASSIGNMENT - ALOGD("assignPointerIds - assigned: cur=%d, id=%d", - currentPointerIndex, id); -#endif - } -} - -int32_t TouchInputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) { - if (mCurrentVirtualKey.down && mCurrentVirtualKey.keyCode == keyCode) { - return AKEY_STATE_VIRTUAL; - } - - size_t numVirtualKeys = mVirtualKeys.size(); - for (size_t i = 0; i < numVirtualKeys; i++) { - const VirtualKey& virtualKey = mVirtualKeys[i]; - if (virtualKey.keyCode == keyCode) { - return AKEY_STATE_UP; - } - } - - return AKEY_STATE_UNKNOWN; -} - -int32_t TouchInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { - if (mCurrentVirtualKey.down && mCurrentVirtualKey.scanCode == scanCode) { - return AKEY_STATE_VIRTUAL; - } - - size_t numVirtualKeys = mVirtualKeys.size(); - for (size_t i = 0; i < numVirtualKeys; i++) { - const VirtualKey& virtualKey = mVirtualKeys[i]; - if (virtualKey.scanCode == scanCode) { - return AKEY_STATE_UP; - } - } - - return AKEY_STATE_UNKNOWN; -} - -bool TouchInputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, - const int32_t* keyCodes, uint8_t* outFlags) { - size_t numVirtualKeys = mVirtualKeys.size(); - for (size_t i = 0; i < numVirtualKeys; i++) { - const VirtualKey& virtualKey = mVirtualKeys[i]; - - for (size_t i = 0; i < numCodes; i++) { - if (virtualKey.keyCode == keyCodes[i]) { - outFlags[i] = 1; - } - } - } - - return true; -} - - -// --- SingleTouchInputMapper --- - -SingleTouchInputMapper::SingleTouchInputMapper(InputDevice* device) : - TouchInputMapper(device) { -} - -SingleTouchInputMapper::~SingleTouchInputMapper() { -} - -void SingleTouchInputMapper::reset(nsecs_t when) { - mSingleTouchMotionAccumulator.reset(getDevice()); - - TouchInputMapper::reset(when); -} - -void SingleTouchInputMapper::process(const RawEvent* rawEvent) { - TouchInputMapper::process(rawEvent); - - mSingleTouchMotionAccumulator.process(rawEvent); -} - -void SingleTouchInputMapper::syncTouch(nsecs_t when, bool* outHavePointerIds) { - if (mTouchButtonAccumulator.isToolActive()) { - mCurrentRawPointerData.pointerCount = 1; - mCurrentRawPointerData.idToIndex[0] = 0; - - bool isHovering = mTouchButtonAccumulator.getToolType() != AMOTION_EVENT_TOOL_TYPE_MOUSE - && (mTouchButtonAccumulator.isHovering() - || (mRawPointerAxes.pressure.valid - && mSingleTouchMotionAccumulator.getAbsolutePressure() <= 0)); - mCurrentRawPointerData.markIdBit(0, isHovering); - - RawPointerData::Pointer& outPointer = mCurrentRawPointerData.pointers[0]; - outPointer.id = 0; - outPointer.x = mSingleTouchMotionAccumulator.getAbsoluteX(); - outPointer.y = mSingleTouchMotionAccumulator.getAbsoluteY(); - outPointer.pressure = mSingleTouchMotionAccumulator.getAbsolutePressure(); - outPointer.touchMajor = 0; - outPointer.touchMinor = 0; - outPointer.toolMajor = mSingleTouchMotionAccumulator.getAbsoluteToolWidth(); - outPointer.toolMinor = mSingleTouchMotionAccumulator.getAbsoluteToolWidth(); - outPointer.orientation = 0; - outPointer.distance = mSingleTouchMotionAccumulator.getAbsoluteDistance(); - outPointer.tiltX = mSingleTouchMotionAccumulator.getAbsoluteTiltX(); - outPointer.tiltY = mSingleTouchMotionAccumulator.getAbsoluteTiltY(); - outPointer.toolType = mTouchButtonAccumulator.getToolType(); - if (outPointer.toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN) { - outPointer.toolType = AMOTION_EVENT_TOOL_TYPE_FINGER; - } - outPointer.isHovering = isHovering; - } -} - -void SingleTouchInputMapper::configureRawPointerAxes() { - TouchInputMapper::configureRawPointerAxes(); - - getAbsoluteAxisInfo(ABS_X, &mRawPointerAxes.x); - getAbsoluteAxisInfo(ABS_Y, &mRawPointerAxes.y); - getAbsoluteAxisInfo(ABS_PRESSURE, &mRawPointerAxes.pressure); - getAbsoluteAxisInfo(ABS_TOOL_WIDTH, &mRawPointerAxes.toolMajor); - getAbsoluteAxisInfo(ABS_DISTANCE, &mRawPointerAxes.distance); - getAbsoluteAxisInfo(ABS_TILT_X, &mRawPointerAxes.tiltX); - getAbsoluteAxisInfo(ABS_TILT_Y, &mRawPointerAxes.tiltY); -} - -bool SingleTouchInputMapper::hasStylus() const { - return mTouchButtonAccumulator.hasStylus(); -} - - -// --- MultiTouchInputMapper --- - -MultiTouchInputMapper::MultiTouchInputMapper(InputDevice* device) : - TouchInputMapper(device) { -} - -MultiTouchInputMapper::~MultiTouchInputMapper() { -} - -void MultiTouchInputMapper::reset(nsecs_t when) { - mMultiTouchMotionAccumulator.reset(getDevice()); - - mPointerIdBits.clear(); - - TouchInputMapper::reset(when); -} - -void MultiTouchInputMapper::process(const RawEvent* rawEvent) { - TouchInputMapper::process(rawEvent); - - mMultiTouchMotionAccumulator.process(rawEvent); -} - -void MultiTouchInputMapper::syncTouch(nsecs_t when, bool* outHavePointerIds) { - size_t inCount = mMultiTouchMotionAccumulator.getSlotCount(); - size_t outCount = 0; - BitSet32 newPointerIdBits; - - for (size_t inIndex = 0; inIndex < inCount; inIndex++) { - const MultiTouchMotionAccumulator::Slot* inSlot = - mMultiTouchMotionAccumulator.getSlot(inIndex); - if (!inSlot->isInUse()) { - continue; - } - - if (outCount >= MAX_POINTERS) { -#if DEBUG_POINTERS - ALOGD("MultiTouch device %s emitted more than maximum of %d pointers; " - "ignoring the rest.", - getDeviceName().string(), MAX_POINTERS); -#endif - break; // too many fingers! - } - - RawPointerData::Pointer& outPointer = mCurrentRawPointerData.pointers[outCount]; - outPointer.x = inSlot->getX(); - outPointer.y = inSlot->getY(); - outPointer.pressure = inSlot->getPressure(); - outPointer.touchMajor = inSlot->getTouchMajor(); - outPointer.touchMinor = inSlot->getTouchMinor(); - outPointer.toolMajor = inSlot->getToolMajor(); - outPointer.toolMinor = inSlot->getToolMinor(); - outPointer.orientation = inSlot->getOrientation(); - outPointer.distance = inSlot->getDistance(); - outPointer.tiltX = 0; - outPointer.tiltY = 0; - - outPointer.toolType = inSlot->getToolType(); - if (outPointer.toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN) { - outPointer.toolType = mTouchButtonAccumulator.getToolType(); - if (outPointer.toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN) { - outPointer.toolType = AMOTION_EVENT_TOOL_TYPE_FINGER; - } - } - - bool isHovering = mTouchButtonAccumulator.getToolType() != AMOTION_EVENT_TOOL_TYPE_MOUSE - && (mTouchButtonAccumulator.isHovering() - || (mRawPointerAxes.pressure.valid && inSlot->getPressure() <= 0)); - outPointer.isHovering = isHovering; - - // Assign pointer id using tracking id if available. - if (*outHavePointerIds) { - int32_t trackingId = inSlot->getTrackingId(); - int32_t id = -1; - if (trackingId >= 0) { - for (BitSet32 idBits(mPointerIdBits); !idBits.isEmpty(); ) { - uint32_t n = idBits.clearFirstMarkedBit(); - if (mPointerTrackingIdMap[n] == trackingId) { - id = n; - } - } - - if (id < 0 && !mPointerIdBits.isFull()) { - id = mPointerIdBits.markFirstUnmarkedBit(); - mPointerTrackingIdMap[id] = trackingId; - } - } - if (id < 0) { - *outHavePointerIds = false; - mCurrentRawPointerData.clearIdBits(); - newPointerIdBits.clear(); - } else { - outPointer.id = id; - mCurrentRawPointerData.idToIndex[id] = outCount; - mCurrentRawPointerData.markIdBit(id, isHovering); - newPointerIdBits.markBit(id); - } - } - - outCount += 1; - } - - mCurrentRawPointerData.pointerCount = outCount; - mPointerIdBits = newPointerIdBits; - - mMultiTouchMotionAccumulator.finishSync(); -} - -void MultiTouchInputMapper::configureRawPointerAxes() { - TouchInputMapper::configureRawPointerAxes(); - - getAbsoluteAxisInfo(ABS_MT_POSITION_X, &mRawPointerAxes.x); - getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &mRawPointerAxes.y); - getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR, &mRawPointerAxes.touchMajor); - getAbsoluteAxisInfo(ABS_MT_TOUCH_MINOR, &mRawPointerAxes.touchMinor); - getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR, &mRawPointerAxes.toolMajor); - getAbsoluteAxisInfo(ABS_MT_WIDTH_MINOR, &mRawPointerAxes.toolMinor); - getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &mRawPointerAxes.orientation); - getAbsoluteAxisInfo(ABS_MT_PRESSURE, &mRawPointerAxes.pressure); - getAbsoluteAxisInfo(ABS_MT_DISTANCE, &mRawPointerAxes.distance); - getAbsoluteAxisInfo(ABS_MT_TRACKING_ID, &mRawPointerAxes.trackingId); - getAbsoluteAxisInfo(ABS_MT_SLOT, &mRawPointerAxes.slot); - - if (mRawPointerAxes.trackingId.valid - && mRawPointerAxes.slot.valid - && mRawPointerAxes.slot.minValue == 0 && mRawPointerAxes.slot.maxValue > 0) { - size_t slotCount = mRawPointerAxes.slot.maxValue + 1; - if (slotCount > MAX_SLOTS) { - ALOGW("MultiTouch Device %s reported %d slots but the framework " - "only supports a maximum of %d slots at this time.", - getDeviceName().string(), slotCount, MAX_SLOTS); - slotCount = MAX_SLOTS; - } - mMultiTouchMotionAccumulator.configure(getDevice(), - slotCount, true /*usingSlotsProtocol*/); - } else { - mMultiTouchMotionAccumulator.configure(getDevice(), - MAX_POINTERS, false /*usingSlotsProtocol*/); - } -} - -bool MultiTouchInputMapper::hasStylus() const { - return mMultiTouchMotionAccumulator.hasStylus() - || mTouchButtonAccumulator.hasStylus(); -} - - -// --- JoystickInputMapper --- - -JoystickInputMapper::JoystickInputMapper(InputDevice* device) : - InputMapper(device) { -} - -JoystickInputMapper::~JoystickInputMapper() { -} - -uint32_t JoystickInputMapper::getSources() { - return AINPUT_SOURCE_JOYSTICK; -} - -void JoystickInputMapper::populateDeviceInfo(InputDeviceInfo* info) { - InputMapper::populateDeviceInfo(info); - - for (size_t i = 0; i < mAxes.size(); i++) { - const Axis& axis = mAxes.valueAt(i); - addMotionRange(axis.axisInfo.axis, axis, info); - - if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) { - addMotionRange(axis.axisInfo.highAxis, axis, info); - - } - } -} - -void JoystickInputMapper::addMotionRange(int32_t axisId, const Axis& axis, - InputDeviceInfo* info) { - info->addMotionRange(axisId, AINPUT_SOURCE_JOYSTICK, - axis.min, axis.max, axis.flat, axis.fuzz, axis.resolution); - /* In order to ease the transition for developers from using the old axes - * to the newer, more semantically correct axes, we'll continue to register - * the old axes as duplicates of their corresponding new ones. */ - int32_t compatAxis = getCompatAxis(axisId); - if (compatAxis >= 0) { - info->addMotionRange(compatAxis, AINPUT_SOURCE_JOYSTICK, - axis.min, axis.max, axis.flat, axis.fuzz, axis.resolution); - } -} - -/* A mapping from axes the joystick actually has to the axes that should be - * artificially created for compatibility purposes. - * Returns -1 if no compatibility axis is needed. */ -int32_t JoystickInputMapper::getCompatAxis(int32_t axis) { - switch(axis) { - case AMOTION_EVENT_AXIS_LTRIGGER: - return AMOTION_EVENT_AXIS_BRAKE; - case AMOTION_EVENT_AXIS_RTRIGGER: - return AMOTION_EVENT_AXIS_GAS; - } - return -1; -} - -void JoystickInputMapper::dump(String8& dump) { - dump.append(INDENT2 "Joystick Input Mapper:\n"); - - dump.append(INDENT3 "Axes:\n"); - size_t numAxes = mAxes.size(); - for (size_t i = 0; i < numAxes; i++) { - const Axis& axis = mAxes.valueAt(i); - const char* label = getAxisLabel(axis.axisInfo.axis); - if (label) { - dump.appendFormat(INDENT4 "%s", label); - } else { - dump.appendFormat(INDENT4 "%d", axis.axisInfo.axis); - } - if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) { - label = getAxisLabel(axis.axisInfo.highAxis); - if (label) { - dump.appendFormat(" / %s (split at %d)", label, axis.axisInfo.splitValue); - } else { - dump.appendFormat(" / %d (split at %d)", axis.axisInfo.highAxis, - axis.axisInfo.splitValue); - } - } else if (axis.axisInfo.mode == AxisInfo::MODE_INVERT) { - dump.append(" (invert)"); - } - - dump.appendFormat(": min=%0.5f, max=%0.5f, flat=%0.5f, fuzz=%0.5f, resolution=%0.5f\n", - axis.min, axis.max, axis.flat, axis.fuzz, axis.resolution); - dump.appendFormat(INDENT4 " scale=%0.5f, offset=%0.5f, " - "highScale=%0.5f, highOffset=%0.5f\n", - axis.scale, axis.offset, axis.highScale, axis.highOffset); - dump.appendFormat(INDENT4 " rawAxis=%d, rawMin=%d, rawMax=%d, " - "rawFlat=%d, rawFuzz=%d, rawResolution=%d\n", - mAxes.keyAt(i), axis.rawAxisInfo.minValue, axis.rawAxisInfo.maxValue, - axis.rawAxisInfo.flat, axis.rawAxisInfo.fuzz, axis.rawAxisInfo.resolution); - } -} - -void JoystickInputMapper::configure(nsecs_t when, - const InputReaderConfiguration* config, uint32_t changes) { - InputMapper::configure(when, config, changes); - - if (!changes) { // first time only - // Collect all axes. - for (int32_t abs = 0; abs <= ABS_MAX; abs++) { - if (!(getAbsAxisUsage(abs, getDevice()->getClasses()) - & INPUT_DEVICE_CLASS_JOYSTICK)) { - continue; // axis must be claimed by a different device - } - - RawAbsoluteAxisInfo rawAxisInfo; - getAbsoluteAxisInfo(abs, &rawAxisInfo); - if (rawAxisInfo.valid) { - // Map axis. - AxisInfo axisInfo; - bool explicitlyMapped = !getEventHub()->mapAxis(getDeviceId(), abs, &axisInfo); - if (!explicitlyMapped) { - // Axis is not explicitly mapped, will choose a generic axis later. - axisInfo.mode = AxisInfo::MODE_NORMAL; - axisInfo.axis = -1; - } - - // Apply flat override. - int32_t rawFlat = axisInfo.flatOverride < 0 - ? rawAxisInfo.flat : axisInfo.flatOverride; - - // Calculate scaling factors and limits. - Axis axis; - if (axisInfo.mode == AxisInfo::MODE_SPLIT) { - float scale = 1.0f / (axisInfo.splitValue - rawAxisInfo.minValue); - float highScale = 1.0f / (rawAxisInfo.maxValue - axisInfo.splitValue); - axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, - scale, 0.0f, highScale, 0.0f, - 0.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale, - rawAxisInfo.resolution * scale); - } else if (isCenteredAxis(axisInfo.axis)) { - float scale = 2.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue); - float offset = avg(rawAxisInfo.minValue, rawAxisInfo.maxValue) * -scale; - axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, - scale, offset, scale, offset, - -1.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale, - rawAxisInfo.resolution * scale); - } else { - float scale = 1.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue); - axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, - scale, 0.0f, scale, 0.0f, - 0.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale, - rawAxisInfo.resolution * scale); - } - - // To eliminate noise while the joystick is at rest, filter out small variations - // in axis values up front. - axis.filter = axis.flat * 0.25f; - - mAxes.add(abs, axis); - } - } - - // If there are too many axes, start dropping them. - // Prefer to keep explicitly mapped axes. - if (mAxes.size() > PointerCoords::MAX_AXES) { - ALOGI("Joystick '%s' has %d axes but the framework only supports a maximum of %d.", - getDeviceName().string(), mAxes.size(), PointerCoords::MAX_AXES); - pruneAxes(true); - pruneAxes(false); - } - - // Assign generic axis ids to remaining axes. - int32_t nextGenericAxisId = AMOTION_EVENT_AXIS_GENERIC_1; - size_t numAxes = mAxes.size(); - for (size_t i = 0; i < numAxes; i++) { - Axis& axis = mAxes.editValueAt(i); - if (axis.axisInfo.axis < 0) { - while (nextGenericAxisId <= AMOTION_EVENT_AXIS_GENERIC_16 - && haveAxis(nextGenericAxisId)) { - nextGenericAxisId += 1; - } - - if (nextGenericAxisId <= AMOTION_EVENT_AXIS_GENERIC_16) { - axis.axisInfo.axis = nextGenericAxisId; - nextGenericAxisId += 1; - } else { - ALOGI("Ignoring joystick '%s' axis %d because all of the generic axis ids " - "have already been assigned to other axes.", - getDeviceName().string(), mAxes.keyAt(i)); - mAxes.removeItemsAt(i--); - numAxes -= 1; - } - } - } - } -} - -bool JoystickInputMapper::haveAxis(int32_t axisId) { - size_t numAxes = mAxes.size(); - for (size_t i = 0; i < numAxes; i++) { - const Axis& axis = mAxes.valueAt(i); - if (axis.axisInfo.axis == axisId - || (axis.axisInfo.mode == AxisInfo::MODE_SPLIT - && axis.axisInfo.highAxis == axisId)) { - return true; - } - } - return false; -} - -void JoystickInputMapper::pruneAxes(bool ignoreExplicitlyMappedAxes) { - size_t i = mAxes.size(); - while (mAxes.size() > PointerCoords::MAX_AXES && i-- > 0) { - if (ignoreExplicitlyMappedAxes && mAxes.valueAt(i).explicitlyMapped) { - continue; - } - ALOGI("Discarding joystick '%s' axis %d because there are too many axes.", - getDeviceName().string(), mAxes.keyAt(i)); - mAxes.removeItemsAt(i); - } -} - -bool JoystickInputMapper::isCenteredAxis(int32_t axis) { - switch (axis) { - case AMOTION_EVENT_AXIS_X: - case AMOTION_EVENT_AXIS_Y: - case AMOTION_EVENT_AXIS_Z: - case AMOTION_EVENT_AXIS_RX: - case AMOTION_EVENT_AXIS_RY: - case AMOTION_EVENT_AXIS_RZ: - case AMOTION_EVENT_AXIS_HAT_X: - case AMOTION_EVENT_AXIS_HAT_Y: - case AMOTION_EVENT_AXIS_ORIENTATION: - case AMOTION_EVENT_AXIS_RUDDER: - case AMOTION_EVENT_AXIS_WHEEL: - return true; - default: - return false; - } -} - -void JoystickInputMapper::reset(nsecs_t when) { - // Recenter all axes. - size_t numAxes = mAxes.size(); - for (size_t i = 0; i < numAxes; i++) { - Axis& axis = mAxes.editValueAt(i); - axis.resetValue(); - } - - InputMapper::reset(when); -} - -void JoystickInputMapper::process(const RawEvent* rawEvent) { - switch (rawEvent->type) { - case EV_ABS: { - ssize_t index = mAxes.indexOfKey(rawEvent->code); - if (index >= 0) { - Axis& axis = mAxes.editValueAt(index); - float newValue, highNewValue; - switch (axis.axisInfo.mode) { - case AxisInfo::MODE_INVERT: - newValue = (axis.rawAxisInfo.maxValue - rawEvent->value) - * axis.scale + axis.offset; - highNewValue = 0.0f; - break; - case AxisInfo::MODE_SPLIT: - if (rawEvent->value < axis.axisInfo.splitValue) { - newValue = (axis.axisInfo.splitValue - rawEvent->value) - * axis.scale + axis.offset; - highNewValue = 0.0f; - } else if (rawEvent->value > axis.axisInfo.splitValue) { - newValue = 0.0f; - highNewValue = (rawEvent->value - axis.axisInfo.splitValue) - * axis.highScale + axis.highOffset; - } else { - newValue = 0.0f; - highNewValue = 0.0f; - } - break; - default: - newValue = rawEvent->value * axis.scale + axis.offset; - highNewValue = 0.0f; - break; - } - axis.newValue = newValue; - axis.highNewValue = highNewValue; - } - break; - } - - case EV_SYN: - switch (rawEvent->code) { - case SYN_REPORT: - sync(rawEvent->when, false /*force*/); - break; - } - break; - } -} - -void JoystickInputMapper::sync(nsecs_t when, bool force) { - if (!filterAxes(force)) { - return; - } - - int32_t metaState = mContext->getGlobalMetaState(); - int32_t buttonState = 0; - - PointerProperties pointerProperties; - pointerProperties.clear(); - pointerProperties.id = 0; - pointerProperties.toolType = AMOTION_EVENT_TOOL_TYPE_UNKNOWN; - - PointerCoords pointerCoords; - pointerCoords.clear(); - - size_t numAxes = mAxes.size(); - for (size_t i = 0; i < numAxes; i++) { - const Axis& axis = mAxes.valueAt(i); - setPointerCoordsAxisValue(&pointerCoords, axis.axisInfo.axis, axis.currentValue); - if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) { - setPointerCoordsAxisValue(&pointerCoords, axis.axisInfo.highAxis, - axis.highCurrentValue); - } - } - - // Moving a joystick axis should not wake the device because joysticks can - // be fairly noisy even when not in use. On the other hand, pushing a gamepad - // button will likely wake the device. - // TODO: Use the input device configuration to control this behavior more finely. - uint32_t policyFlags = 0; - - NotifyMotionArgs args(when, getDeviceId(), AINPUT_SOURCE_JOYSTICK, policyFlags, - AMOTION_EVENT_ACTION_MOVE, 0, metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, - ADISPLAY_ID_NONE, 1, &pointerProperties, &pointerCoords, 0, 0, 0); - getListener()->notifyMotion(&args); -} - -void JoystickInputMapper::setPointerCoordsAxisValue(PointerCoords* pointerCoords, - int32_t axis, float value) { - pointerCoords->setAxisValue(axis, value); - /* In order to ease the transition for developers from using the old axes - * to the newer, more semantically correct axes, we'll continue to produce - * values for the old axes as mirrors of the value of their corresponding - * new axes. */ - int32_t compatAxis = getCompatAxis(axis); - if (compatAxis >= 0) { - pointerCoords->setAxisValue(compatAxis, value); - } -} - -bool JoystickInputMapper::filterAxes(bool force) { - bool atLeastOneSignificantChange = force; - size_t numAxes = mAxes.size(); - for (size_t i = 0; i < numAxes; i++) { - Axis& axis = mAxes.editValueAt(i); - if (force || hasValueChangedSignificantly(axis.filter, - axis.newValue, axis.currentValue, axis.min, axis.max)) { - axis.currentValue = axis.newValue; - atLeastOneSignificantChange = true; - } - if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) { - if (force || hasValueChangedSignificantly(axis.filter, - axis.highNewValue, axis.highCurrentValue, axis.min, axis.max)) { - axis.highCurrentValue = axis.highNewValue; - atLeastOneSignificantChange = true; - } - } - } - return atLeastOneSignificantChange; -} - -bool JoystickInputMapper::hasValueChangedSignificantly( - float filter, float newValue, float currentValue, float min, float max) { - if (newValue != currentValue) { - // Filter out small changes in value unless the value is converging on the axis - // bounds or center point. This is intended to reduce the amount of information - // sent to applications by particularly noisy joysticks (such as PS3). - if (fabs(newValue - currentValue) > filter - || hasMovedNearerToValueWithinFilteredRange(filter, newValue, currentValue, min) - || hasMovedNearerToValueWithinFilteredRange(filter, newValue, currentValue, max) - || hasMovedNearerToValueWithinFilteredRange(filter, newValue, currentValue, 0)) { - return true; - } - } - return false; -} - -bool JoystickInputMapper::hasMovedNearerToValueWithinFilteredRange( - float filter, float newValue, float currentValue, float thresholdValue) { - float newDistance = fabs(newValue - thresholdValue); - if (newDistance < filter) { - float oldDistance = fabs(currentValue - thresholdValue); - if (newDistance < oldDistance) { - return true; - } - } - return false; -} - -} // namespace android |